diff --git a/demos/demo-on-progress.ts b/demos/demo-on-progress.ts
index 5f8f8cb..8711645 100644
--- a/demos/demo-on-progress.ts
+++ b/demos/demo-on-progress.ts
@@ -5,7 +5,7 @@ import { ChatGPTAPI } from '../src'
 dotenv.config()
 
 /**
- * Demo CLI for testing the `onProgress` handler.
+ * Demo CLI for testing the `onProgress` streaming support.
  *
  * ```
  * npx tsx demos/demo-on-progress.ts
diff --git a/demos/demo-persistence.ts b/demos/demo-persistence.ts
new file mode 100644
index 0000000..0a80c35
--- /dev/null
+++ b/demos/demo-persistence.ts
@@ -0,0 +1,72 @@
+import KeyvRedis from '@keyv/redis'
+import dotenv from 'dotenv-safe'
+import Keyv from 'keyv'
+import { oraPromise } from 'ora'
+
+import { ChatGPTAPI, type ChatMessage } from '../src'
+
+dotenv.config()
+
+/**
+ * Demo CLI for testing message persistence with redis.
+ *
+ * ```
+ * npx tsx demos/demo-persistence.ts
+ * ```
+ */
+async function main() {
+  const redisUrl = process.env.REDIS_URL || 'redis://localhost:6379'
+  const store = new KeyvRedis(redisUrl)
+  const messageStore = new Keyv({ store, namespace: 'chatgpt-demo' })
+
+  let res: ChatMessage
+
+  {
+    // create an initial conversation in one client
+    const api = new ChatGPTAPI({
+      apiKey: process.env.OPENAI_API_KEY,
+      messageStore
+    })
+
+    const prompt = 'What are the top 5 anime of all time?'
+
+    res = await oraPromise(api.sendMessage(prompt), {
+      text: prompt
+    })
+    console.log('\n' + res.text + '\n')
+  }
+
+  {
+    // follow up with a second client using the same underlying redis store
+    const api = new ChatGPTAPI({
+      apiKey: process.env.OPENAI_API_KEY,
+      messageStore
+    })
+
+    const prompt = 'Can you give 5 more?'
+
+    res = await oraPromise(
+      api.sendMessage(prompt, {
+        conversationId: res.conversationId,
+        parentMessageId: res.id
+      }),
+      {
+        text: prompt
+      }
+    )
+    console.log('\n' + res.text + '\n')
+  }
+
+  // wait for redis to finish and then disconnect
+  await new Promise<void>((resolve) => {
+    setTimeout(() => {
+      messageStore.disconnect()
+      resolve()
+    }, 1000)
+  })
+}
+
+main().catch((err) => {
+  console.error(err)
+  process.exit(1)
+})
diff --git a/package.json b/package.json
index d087410..974328d 100644
--- a/package.json
+++ b/package.json
@@ -37,15 +37,16 @@
   "dependencies": {
     "eventsource-parser": "^0.0.5",
     "gpt-3-encoder": "^1.1.4",
+    "keyv": "^4.5.2",
     "p-timeout": "^6.0.0",
     "quick-lru": "^6.1.1",
     "uuid": "^9.0.0"
   },
   "devDependencies": {
+    "@keyv/redis": "^2.5.4",
     "@trivago/prettier-plugin-sort-imports": "^4.0.0",
     "@types/node": "^18.11.9",
     "@types/uuid": "^9.0.0",
-    "ava": "^5.1.0",
     "del-cli": "^5.0.0",
     "dotenv-safe": "^8.2.0",
     "husky": "^8.0.2",
@@ -64,14 +65,6 @@
       "prettier --write"
     ]
   },
-  "ava": {
-    "extensions": {
-      "ts": "module"
-    },
-    "nodeArguments": [
-      "--loader=tsx"
-    ]
-  },
   "keywords": [
     "openai",
     "chatgpt",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ae4be58..70c1242 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,15 +1,16 @@
 lockfileVersion: 5.4
 
 specifiers:
+  '@keyv/redis': ^2.5.4
   '@trivago/prettier-plugin-sort-imports': ^4.0.0
   '@types/node': ^18.11.9
   '@types/uuid': ^9.0.0
-  ava: ^5.1.0
   del-cli: ^5.0.0
   dotenv-safe: ^8.2.0
   eventsource-parser: ^0.0.5
   gpt-3-encoder: ^1.1.4
   husky: ^8.0.2
+  keyv: ^4.5.2
   lint-staged: ^13.0.3
   npm-run-all: ^4.1.5
   ora: ^6.1.2
@@ -26,15 +27,16 @@ specifiers:
 dependencies:
   eventsource-parser: 0.0.5
   gpt-3-encoder: 1.1.4
+  keyv: 4.5.2
   p-timeout: 6.1.0
   quick-lru: 6.1.1
   uuid: 9.0.0
 
 devDependencies:
+  '@keyv/redis': 2.5.4
   '@trivago/prettier-plugin-sort-imports': 4.0.0_prettier@2.8.3
   '@types/node': 18.11.18
   '@types/uuid': 9.0.0
-  ava: 5.1.1
   del-cli: 5.0.0
   dotenv-safe: 8.2.0
   husky: 8.0.3
@@ -334,6 +336,10 @@ packages:
     dev: true
     optional: true
 
+  /@ioredis/commands/1.2.0:
+    resolution: {integrity: sha512-Sx1pU8EM64o2BrqNpEO1CNLtKQwyhuXuqyfH7oGKCk+1a33d2r5saW8zNwm3j6BTExtjrv2BxTgzzkMwts6vGg==}
+    dev: true
+
   /@jridgewell/gen-mapping/0.1.1:
     resolution: {integrity: sha512-sQXCasFk+U8lWYEe66WxRDOE9PjVz4vSM51fTu3Hw+ClTpUSQb718772vH3pyS5pShp6lvQM7SxgIDXXXmOX7w==}
     engines: {node: '>=6.0.0'}
@@ -372,6 +378,15 @@ packages:
       '@jridgewell/sourcemap-codec': 1.4.14
     dev: true
 
+  /@keyv/redis/2.5.4:
+    resolution: {integrity: sha512-27MTiJFME3R13fPiiOV/ww550gU9Zc75eJkzD+EpwRXcgunjcXcYEw1cM9XyaEI5y0aS1PPknRjKGlYRjT8nTQ==}
+    engines: {node: '>= 12'}
+    dependencies:
+      ioredis: 5.3.0
+    transitivePeerDependencies:
+      - supports-color
+    dev: true
+
   /@nodelib/fs.scandir/2.1.5:
     resolution: {integrity: sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==}
     engines: {node: '>= 8'}
@@ -427,17 +442,6 @@ packages:
     resolution: {integrity: sha512-kr90f+ERiQtKWMz5rP32ltJ/BtULDI5RVO0uavn1HQUOwjx0R1h0rnDYNL0CepF1zL5bSY6FISAfd9tOdDhU5Q==}
     dev: true
 
-  /acorn-walk/8.2.0:
-    resolution: {integrity: sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==}
-    engines: {node: '>=0.4.0'}
-    dev: true
-
-  /acorn/8.8.2:
-    resolution: {integrity: sha512-xjIYgE8HBrkpd/sJqOGNspf8uHG+NOHGOw6a/Urj8taM2EXfdNAH2oFcPeIFfsv3+kz/mJrS5VuMqbNLjCa2vw==}
-    engines: {node: '>=0.4.0'}
-    hasBin: true
-    dev: true
-
   /aggregate-error/3.1.0:
     resolution: {integrity: sha512-4I7Td01quW/RpocfNayFdFVk1qSuoh0E7JrbRJ16nH01HhKFQ88INq9Sd+nd72zqRySlr9BmDA8xlEJ6vJMrYA==}
     engines: {node: '>=8'}
@@ -502,101 +506,21 @@ packages:
       picomatch: 2.3.1
     dev: true
 
-  /argparse/1.0.10:
-    resolution: {integrity: sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==}
-    dependencies:
-      sprintf-js: 1.0.3
-    dev: true
-
-  /array-find-index/1.0.2:
-    resolution: {integrity: sha512-M1HQyIXcBGtVywBt8WVdim+lrNaK7VHp99Qt5pSNziXznKHViIBbXWtfRTpEFpF/c4FdfxNAsCCwPp5phBYJtw==}
-    engines: {node: '>=0.10.0'}
-    dev: true
-
   /array-union/2.1.0:
     resolution: {integrity: sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==}
     engines: {node: '>=8'}
     dev: true
 
-  /arrgv/1.0.2:
-    resolution: {integrity: sha512-a4eg4yhp7mmruZDQFqVMlxNRFGi/i1r87pt8SDHy0/I8PqSXoUTlWZRdAZo0VXgvEARcujbtTk8kiZRi1uDGRw==}
-    engines: {node: '>=8.0.0'}
-    dev: true
-
   /arrify/1.0.1:
     resolution: {integrity: sha512-3CYzex9M9FGQjCGMGyi6/31c8GJbgb0qGyrx5HWxPd0aCwh4cB2YjMb2Xf9UuoogrMrlO9cTqnB5rI5GHZTcUA==}
     engines: {node: '>=0.10.0'}
     dev: true
 
-  /arrify/3.0.0:
-    resolution: {integrity: sha512-tLkvA81vQG/XqE2mjDkGQHoOINtMHtysSnemrmoGe6PydDPMRbVugqyk4A6V/WDWEfm3l+0d8anA9r8cv/5Jaw==}
-    engines: {node: '>=12'}
-    dev: true
-
   /astral-regex/2.0.0:
     resolution: {integrity: sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==}
     engines: {node: '>=8'}
     dev: true
 
-  /ava/5.1.1:
-    resolution: {integrity: sha512-od1CWgWVIKZSdEc1dhQWhbsd6KBs0EYjek7eqZNGPvy+NyC9Q1bXixcadlgOXwDG9aM0zLMQZwRXfe9gMb1LQQ==}
-    engines: {node: '>=14.19 <15 || >=16.15 <17 || >=18'}
-    hasBin: true
-    peerDependencies:
-      '@ava/typescript': '*'
-    peerDependenciesMeta:
-      '@ava/typescript':
-        optional: true
-    dependencies:
-      acorn: 8.8.2
-      acorn-walk: 8.2.0
-      ansi-styles: 6.2.1
-      arrgv: 1.0.2
-      arrify: 3.0.0
-      callsites: 4.0.0
-      cbor: 8.1.0
-      chalk: 5.2.0
-      chokidar: 3.5.3
-      chunkd: 2.0.1
-      ci-info: 3.7.1
-      ci-parallel-vars: 1.0.1
-      clean-yaml-object: 0.1.0
-      cli-truncate: 3.1.0
-      code-excerpt: 4.0.0
-      common-path-prefix: 3.0.0
-      concordance: 5.0.4
-      currently-unhandled: 0.4.1
-      debug: 4.3.4
-      del: 7.0.0
-      emittery: 1.0.1
-      figures: 5.0.0
-      globby: 13.1.3
-      ignore-by-default: 2.1.0
-      indent-string: 5.0.0
-      is-error: 2.2.2
-      is-plain-object: 5.0.0
-      is-promise: 4.0.0
-      matcher: 5.0.0
-      mem: 9.0.2
-      ms: 2.1.3
-      p-event: 5.0.1
-      p-map: 5.5.0
-      picomatch: 2.3.1
-      pkg-conf: 4.0.0
-      plur: 5.1.0
-      pretty-ms: 8.0.0
-      resolve-cwd: 3.0.0
-      slash: 3.0.0
-      stack-utils: 2.0.6
-      strip-ansi: 7.0.1
-      supertap: 3.0.1
-      temp-dir: 3.0.0
-      write-file-atomic: 5.0.0
-      yargs: 17.6.2
-    transitivePeerDependencies:
-      - supports-color
-    dev: true
-
   /available-typed-arrays/1.0.5:
     resolution: {integrity: sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==}
     engines: {node: '>= 0.4'}
@@ -623,10 +547,6 @@ packages:
       readable-stream: 3.6.0
     dev: true
 
-  /blueimp-md5/2.19.0:
-    resolution: {integrity: sha512-DRQrD6gJyy8FbiE4s+bDoXS9hiW3Vbx5uCdwvcCf3zLHL+Iv7LtGHLpr+GZV8rHG8tK766FGYBwRbu8pELTt+w==}
-    dev: true
-
   /brace-expansion/1.1.11:
     resolution: {integrity: sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==}
     dependencies:
@@ -691,11 +611,6 @@ packages:
       get-intrinsic: 1.2.0
     dev: true
 
-  /callsites/4.0.0:
-    resolution: {integrity: sha512-y3jRROutgpKdz5vzEhWM34TidDU8vkJppF8dszITeb1PQmSqV3DTxyV8G/lyO/DNvtE1YTedehmw9MPZsCBHxQ==}
-    engines: {node: '>=12.20'}
-    dev: true
-
   /camelcase-keys/7.0.2:
     resolution: {integrity: sha512-Rjs1H+A9R+Ig+4E/9oyB66UC5Mj9Xq3N//vcLf2WzgdTi/3gUu3Z9KoqmlrEG4VuuLK8wJHofxzdQXz/knhiYg==}
     engines: {node: '>=12'}
@@ -715,13 +630,6 @@ packages:
     resolution: {integrity: sha512-qMBmvmQmFXaSxexkjjfMvD5rnDL0+m+dUMZKoDYsGG8iZN29RuYh9eRoMvKsT6uMAWlyUUGDEQGJJYjzCIO9ew==}
     dev: true
 
-  /cbor/8.1.0:
-    resolution: {integrity: sha512-DwGjNW9omn6EwP70aXsn7FQJx5kO12tX0bZkaTjzdVFM6/7nhA4t0EENocKGx6D2Bch9PE2KzCUf5SceBdeijg==}
-    engines: {node: '>=12.19'}
-    dependencies:
-      nofilter: 3.1.0
-    dev: true
-
   /chalk/2.4.2:
     resolution: {integrity: sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==}
     engines: {node: '>=4'}
@@ -751,19 +659,6 @@ packages:
       fsevents: 2.3.2
     dev: true
 
-  /chunkd/2.0.1:
-    resolution: {integrity: sha512-7d58XsFmOq0j6el67Ug9mHf9ELUXsQXYJBkyxhH/k+6Ke0qXRnv0kbemx+Twc6fRJ07C49lcbdgm9FL1Ei/6SQ==}
-    dev: true
-
-  /ci-info/3.7.1:
-    resolution: {integrity: sha512-4jYS4MOAaCIStSRwiuxc4B8MYhIe676yO1sYGzARnjXkWpmzZMMYxY6zu8WYWDhSuth5zhrQ1rhNSibyyvv4/w==}
-    engines: {node: '>=8'}
-    dev: true
-
-  /ci-parallel-vars/1.0.1:
-    resolution: {integrity: sha512-uvzpYrpmidaoxvIQHM+rKSrigjOe9feHYbw4uOI2gdfe1C3xIlxO+kVXq83WQWNniTf8bAxVpy+cQeFQsMERKg==}
-    dev: true
-
   /clean-stack/2.2.0:
     resolution: {integrity: sha512-4diC9HaTE+KRAMWhDhrGOECgWZxoevMc5TlkObMqNSsVU62PYzXZ/SMTjzyGAFF1YusgxGcSWTEXBhp0CPwQ1A==}
     engines: {node: '>=6'}
@@ -776,11 +671,6 @@ packages:
       escape-string-regexp: 5.0.0
     dev: true
 
-  /clean-yaml-object/0.1.0:
-    resolution: {integrity: sha512-3yONmlN9CSAkzNwnRCiJQ7Q2xK5mWuEfL3PuTZcAUzhObbXsfsnMptJzXwz93nc5zn9V9TwCVMmV7w4xsm43dw==}
-    engines: {node: '>=0.10.0'}
-    dev: true
-
   /cli-cursor/3.1.0:
     resolution: {integrity: sha512-I/zHAwsKf9FqGoXM4WWRACob9+SNukZTd94DWF57E4toouRulbCxcUh6RKUEOQlYTHJnzkPMySvPNaaSLNfLZw==}
     engines: {node: '>=8'}
@@ -816,25 +706,14 @@ packages:
       string-width: 5.1.2
     dev: true
 
-  /cliui/8.0.1:
-    resolution: {integrity: sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==}
-    engines: {node: '>=12'}
-    dependencies:
-      string-width: 4.2.3
-      strip-ansi: 6.0.1
-      wrap-ansi: 7.0.0
-    dev: true
-
   /clone/1.0.4:
     resolution: {integrity: sha512-JQHZ2QMW6l3aH/j6xCqQThY/9OH4D/9ls34cgkUBiEeocRTU04tHfKPBsUK1PqZCUQM7GiA0IIXJSuXHI64Kbg==}
     engines: {node: '>=0.8'}
     dev: true
 
-  /code-excerpt/4.0.0:
-    resolution: {integrity: sha512-xxodCmBen3iy2i0WtAK8FlFNrRzjUqjRsMfho58xT/wvZU1YTM3fCnRjcy1gJPMepaRlgm/0e6w8SpWHpn3/cA==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      convert-to-spaces: 2.0.1
+  /cluster-key-slot/1.1.2:
+    resolution: {integrity: sha512-RMr0FhtfXemyinomL4hrWcYJxmX6deFdCxpJzhDttxgO1+bcCnkk+9drydLVDmAMG7NE6aN/fl4F7ucU/90gAA==}
+    engines: {node: '>=0.10.0'}
     dev: true
 
   /color-convert/1.9.3:
@@ -872,37 +751,14 @@ packages:
     engines: {node: ^12.20.0 || >=14}
     dev: true
 
-  /common-path-prefix/3.0.0:
-    resolution: {integrity: sha512-QE33hToZseCH3jS0qN96O/bSh3kaw/h+Tq7ngyY9eWDUnTlTNUyqfqvCXioLe5Na5jFsL78ra/wuBU4iuEgd4w==}
-    dev: true
-
   /concat-map/0.0.1:
     resolution: {integrity: sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==}
     dev: true
 
-  /concordance/5.0.4:
-    resolution: {integrity: sha512-OAcsnTEYu1ARJqWVGwf4zh4JDfHZEaSNlNccFmt8YjB2l/n19/PF2viLINHc57vO4FKIAFl2FWASIGZZWZ2Kxw==}
-    engines: {node: '>=10.18.0 <11 || >=12.14.0 <13 || >=14'}
-    dependencies:
-      date-time: 3.1.0
-      esutils: 2.0.3
-      fast-diff: 1.2.0
-      js-string-escape: 1.0.1
-      lodash: 4.17.21
-      md5-hex: 3.0.1
-      semver: 7.3.8
-      well-known-symbols: 2.0.0
-    dev: true
-
   /convert-source-map/1.9.0:
     resolution: {integrity: sha512-ASFBup0Mz1uyiIjANan1jzLQami9z1PoYSZCiiYW2FczPbenXc45FZdBZLzOT+r6+iciuEModtmCti+hjaAk0A==}
     dev: true
 
-  /convert-to-spaces/2.0.1:
-    resolution: {integrity: sha512-rcQ1bsQO9799wq24uE5AM2tAILy4gXGIK/njFWcVQkGNZ96edlpY+A7bjwvzjYvLDyzmG1MmMLZhpcsb+klNMQ==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dev: true
-
   /cross-spawn/6.0.5:
     resolution: {integrity: sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==}
     engines: {node: '>=4.8'}
@@ -923,20 +779,6 @@ packages:
       which: 2.0.2
     dev: true
 
-  /currently-unhandled/0.4.1:
-    resolution: {integrity: sha512-/fITjgjGU50vjQ4FH6eUoYu+iUoUKIXws2hL15JJpIR+BbTxaXQsMuuyjtNh2WqsSBS5nsaZHFsFecyw5CCAng==}
-    engines: {node: '>=0.10.0'}
-    dependencies:
-      array-find-index: 1.0.2
-    dev: true
-
-  /date-time/3.1.0:
-    resolution: {integrity: sha512-uqCUKXE5q1PNBXjPqvwhwJf9SwMoAHBgWJ6DcrnS5o+W2JOiIILl0JEdVD8SGujrNS02GGxgwAg2PN2zONgtjg==}
-    engines: {node: '>=6'}
-    dependencies:
-      time-zone: 1.0.0
-    dev: true
-
   /debug/4.3.4:
     resolution: {integrity: sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==}
     engines: {node: '>=6.0'}
@@ -1004,6 +846,11 @@ packages:
       slash: 4.0.0
     dev: true
 
+  /denque/2.1.0:
+    resolution: {integrity: sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==}
+    engines: {node: '>=0.10'}
+    dev: true
+
   /dir-glob/3.0.1:
     resolution: {integrity: sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==}
     engines: {node: '>=8'}
@@ -1030,11 +877,6 @@ packages:
     resolution: {integrity: sha512-M8WEXFuKXMYMVr45fo8mq0wUrrJHheiKZf6BArTKk9ZBYCKJEOU5H8cdWgDT+qCVZf7Na4lVUaZsA+h6uA9+PA==}
     dev: true
 
-  /emittery/1.0.1:
-    resolution: {integrity: sha512-2ID6FdrMD9KDLldGesP6317G78K7km/kMcwItRtVFva7I/cSEOIaLpewaUb+YLXVwdAp3Ctfxh/V5zIl1sj7dQ==}
-    engines: {node: '>=14.16'}
-    dev: true
-
   /emoji-regex/8.0.0:
     resolution: {integrity: sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==}
     dev: true
@@ -1326,27 +1168,11 @@ packages:
     engines: {node: '>=0.8.0'}
     dev: true
 
-  /escape-string-regexp/2.0.0:
-    resolution: {integrity: sha512-UpzcLCXolUWcNu5HtVMHYdXJjArjsF9C0aNnquZYY4uW/Vu0miy5YoWvbV345HauVvcAUnpRuhMMcqTcGOY2+w==}
-    engines: {node: '>=8'}
-    dev: true
-
   /escape-string-regexp/5.0.0:
     resolution: {integrity: sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw==}
     engines: {node: '>=12'}
     dev: true
 
-  /esprima/4.0.1:
-    resolution: {integrity: sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==}
-    engines: {node: '>=4'}
-    hasBin: true
-    dev: true
-
-  /esutils/2.0.3:
-    resolution: {integrity: sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==}
-    engines: {node: '>=0.10.0'}
-    dev: true
-
   /eventsource-parser/0.0.5:
     resolution: {integrity: sha512-BAq82bC3ZW9fPYYZlofXBOAfbpmDzXIOsj+GOehQwgTUYsQZ6HtHs6zuRtge7Ph8OhS6lNH1kJF8q9dj17RcmA==}
     engines: {node: '>=12'}
@@ -1382,10 +1208,6 @@ packages:
       strip-final-newline: 3.0.0
     dev: true
 
-  /fast-diff/1.2.0:
-    resolution: {integrity: sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==}
-    dev: true
-
   /fast-glob/3.2.12:
     resolution: {integrity: sha512-DVj4CQIYYow0BlaelwK1pHl5n5cRSJfM60UA0zK891sVInoPri2Ekj7+e1CT3/3qxXenpI+nBBmQAcJPJgaj4w==}
     engines: {node: '>=8.6.0'}
@@ -1403,14 +1225,6 @@ packages:
       reusify: 1.0.4
     dev: true
 
-  /figures/5.0.0:
-    resolution: {integrity: sha512-ej8ksPF4x6e5wvK9yevct0UCXh8TTFlWGVLlgjZuoBH1HwjIfKE/IdL5mq89sFA7zELi1VhKpmtDnrs7zWyeyg==}
-    engines: {node: '>=14'}
-    dependencies:
-      escape-string-regexp: 5.0.0
-      is-unicode-supported: 1.3.0
-    dev: true
-
   /fill-range/7.0.1:
     resolution: {integrity: sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==}
     engines: {node: '>=8'}
@@ -1426,14 +1240,6 @@ packages:
       path-exists: 4.0.0
     dev: true
 
-  /find-up/6.3.0:
-    resolution: {integrity: sha512-v2ZsoEuVHYy8ZIlYqwPe/39Cy+cFDzp4dXPaxNvkEuouymu+2Jbz0PxpKarJHYJTmv2HWT3O382qY8l4jMWthw==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      locate-path: 7.1.1
-      path-exists: 5.0.0
-    dev: true
-
   /for-each/0.3.3:
     resolution: {integrity: sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==}
     dependencies:
@@ -1475,11 +1281,6 @@ packages:
     engines: {node: '>=6.9.0'}
     dev: true
 
-  /get-caller-file/2.0.5:
-    resolution: {integrity: sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==}
-    engines: {node: 6.* || 8.* || >= 10.*}
-    dev: true
-
   /get-intrinsic/1.2.0:
     resolution: {integrity: sha512-L049y6nFOuom5wGyRc3/gdTLO94dySVKRACj1RmJZBQXlbTMhtNIgkWkUHq+jYmZvKf14EW1EoJnnjbmoHij0Q==}
     dependencies:
@@ -1671,21 +1472,11 @@ packages:
     resolution: {integrity: sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==}
     dev: true
 
-  /ignore-by-default/2.1.0:
-    resolution: {integrity: sha512-yiWd4GVmJp0Q6ghmM2B/V3oZGRmjrKLXvHR3TE1nfoXsmoggllfZUQe74EN0fJdPFZu2NIvNdrMMLm3OsV7Ohw==}
-    engines: {node: '>=10 <11 || >=12 <13 || >=14'}
-    dev: true
-
   /ignore/5.2.4:
     resolution: {integrity: sha512-MAb38BcSbH0eHNBxn7ql2NH/kX33OkB3lZ1BNdh7ENeRChHTYsTvWrMubiIAMNS2llXEEgZ1MUOBtXChP3kaFQ==}
     engines: {node: '>= 4'}
     dev: true
 
-  /imurmurhash/0.1.4:
-    resolution: {integrity: sha512-JmXMZ6wuvDmLiHEml9ykzqO6lwFbof0GG4IkcGaENdCRDDmMVnny7s5HsIgHCbaq0w2MyPhDqkhTUgS2LU2PHA==}
-    engines: {node: '>=0.8.19'}
-    dev: true
-
   /indent-string/4.0.0:
     resolution: {integrity: sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==}
     engines: {node: '>=8'}
@@ -1716,9 +1507,21 @@ packages:
       side-channel: 1.0.4
     dev: true
 
-  /irregular-plurals/3.4.0:
-    resolution: {integrity: sha512-YXxECO/W6N9aMBVKMKKZ8TXESgq7EFrp3emCGGUcrYY1cgJIeZjoB75MTu8qi+NAKntS9NwPU8VdcQ3r6E6aWQ==}
-    engines: {node: '>=8'}
+  /ioredis/5.3.0:
+    resolution: {integrity: sha512-Id9jKHhsILuIZpHc61QkagfVdUj2Rag5GzG1TGEvRNeM7dtTOjICgjC+tvqYxi//PuX2wjQ+Xjva2ONBuf92Pw==}
+    engines: {node: '>=12.22.0'}
+    dependencies:
+      '@ioredis/commands': 1.2.0
+      cluster-key-slot: 1.1.2
+      debug: 4.3.4
+      denque: 2.1.0
+      lodash.defaults: 4.2.0
+      lodash.isarguments: 3.1.0
+      redis-errors: 1.2.0
+      redis-parser: 3.0.0
+      standard-as-callback: 2.1.0
+    transitivePeerDependencies:
+      - supports-color
     dev: true
 
   /is-array-buffer/3.0.1:
@@ -1772,10 +1575,6 @@ packages:
       has-tostringtag: 1.0.0
     dev: true
 
-  /is-error/2.2.2:
-    resolution: {integrity: sha512-IOQqts/aHWbiisY5DuPJQ0gcbvaLFCa7fBa9xoLfxBZvQ+ZI/Zh9xoI7Gk+G64N0FdK4AbibytHht2tWgpJWLg==}
-    dev: true
-
   /is-extglob/2.1.1:
     resolution: {integrity: sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==}
     engines: {node: '>=0.10.0'}
@@ -1835,15 +1634,6 @@ packages:
     engines: {node: '>=0.10.0'}
     dev: true
 
-  /is-plain-object/5.0.0:
-    resolution: {integrity: sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==}
-    engines: {node: '>=0.10.0'}
-    dev: true
-
-  /is-promise/4.0.0:
-    resolution: {integrity: sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ==}
-    dev: true
-
   /is-regex/1.1.4:
     resolution: {integrity: sha512-kvRdxDsxZjhzUX07ZnLydzS1TU/TJlTUHHY4YLL87e37oUA49DfkLqgy+VjFocowy29cKvcSiu+kIv728jTTVg==}
     engines: {node: '>= 0.4'}
@@ -1917,29 +1707,20 @@ packages:
     engines: {node: '>=10'}
     dev: true
 
-  /js-string-escape/1.0.1:
-    resolution: {integrity: sha512-Smw4xcfIQ5LVjAOuJCvN/zIodzA/BBSsluuoSykP+lUvScIi4U6RJLfwHet5cxFnCswUjISV8oAXaqaJDY3chg==}
-    engines: {node: '>= 0.8'}
-    dev: true
-
   /js-tokens/4.0.0:
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     dev: true
 
-  /js-yaml/3.14.1:
-    resolution: {integrity: sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==}
-    hasBin: true
-    dependencies:
-      argparse: 1.0.10
-      esprima: 4.0.1
-    dev: true
-
   /jsesc/2.5.2:
     resolution: {integrity: sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==}
     engines: {node: '>=4'}
     hasBin: true
     dev: true
 
+  /json-buffer/3.0.1:
+    resolution: {integrity: sha512-4bV5BfR2mqfQTJm+V5tPPdf+ZpuhiIvTuAB5g8kcrXOZpTT/QwwVRWBywX1ozr6lEuPdbHxwaJlm9G6mI2sfSQ==}
+    dev: false
+
   /json-parse-better-errors/1.0.2:
     resolution: {integrity: sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==}
     dev: true
@@ -1958,6 +1739,12 @@ packages:
     resolution: {integrity: sha512-gfFQZrcTc8CnKXp6Y4/CBT3fTc0OVuDofpre4aEeEpSBPV5X5v4+Vmx+8snU7RLPrNHPKSgLxGo9YuQzz20o+w==}
     dev: true
 
+  /keyv/4.5.2:
+    resolution: {integrity: sha512-5MHbFaKn8cNSmVW7BYnijeAVlE4cYA/SVkifVgrh7yotnfhKmjuXpDKjrABLnT0SfHWV21P8ow07OGfRrNDg8g==}
+    dependencies:
+      json-buffer: 3.0.1
+    dev: false
+
   /kind-of/6.0.3:
     resolution: {integrity: sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==}
     engines: {node: '>=0.10.0'}
@@ -2024,11 +1811,6 @@ packages:
       strip-bom: 3.0.0
     dev: true
 
-  /load-json-file/7.0.1:
-    resolution: {integrity: sha512-Gnxj3ev3mB5TkVBGad0JM6dmLiQL+o0t23JPBZ9sd+yvSLk05mFoqKBw5N8gbbkU4TNXyqCgIrl/VM17OgUIgQ==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dev: true
-
   /load-tsconfig/0.2.3:
     resolution: {integrity: sha512-iyT2MXws+dc2Wi6o3grCFtGXpeMvHmJqS27sMPGtV2eUu4PeFnG+33I8BlFK1t1NWMjOpcx9bridn5yxLDX2gQ==}
     engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
@@ -2041,11 +1823,12 @@ packages:
       p-locate: 5.0.0
     dev: true
 
-  /locate-path/7.1.1:
-    resolution: {integrity: sha512-vJXaRMJgRVD3+cUZs3Mncj2mxpt5mP0EmNOsxRSZRMlbqjvxzDEOIUWXGmavo0ZC9+tNZCBLQ66reA11nbpHZg==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      p-locate: 6.0.0
+  /lodash.defaults/4.2.0:
+    resolution: {integrity: sha512-qjxPLHd3r5DnsdGacqOMU6pb/avJzdh9tFX2ymgoZE27BmjXrNy/y4LoaiTeAb+O3gL8AfpJGtqfX/ae2leYYQ==}
+    dev: true
+
+  /lodash.isarguments/3.1.0:
+    resolution: {integrity: sha512-chi4NHZlZqZD18a0imDHnZPrDeBbTtVN7GXMwuGdRH9qotxAjYs3aVLKc7zNOG9eddR5Ksd8rvFEBc9SsggPpg==}
     dev: true
 
   /lodash.sortby/4.7.0:
@@ -2091,13 +1874,6 @@ packages:
     resolution: {integrity: sha512-zTU3DaZaF3Rt9rhN3uBMGQD3dD2/vFQqnvZCDv4dl5iOzq2IZQqTxu90r4E5J+nP70J3ilqVCrbho2eWaeW8Ow==}
     dev: true
 
-  /map-age-cleaner/0.1.3:
-    resolution: {integrity: sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==}
-    engines: {node: '>=6'}
-    dependencies:
-      p-defer: 1.0.0
-    dev: true
-
   /map-obj/1.0.1:
     resolution: {integrity: sha512-7N/q3lyZ+LVCp7PzuxrJr4KMbBE2hW7BT7YNia330OFxIf4d3r5zVpicP2650l7CPN6RM9zOJRl3NGpqSiw3Eg==}
     engines: {node: '>=0.10.0'}
@@ -2114,28 +1890,6 @@ packages:
     hasBin: true
     dev: true
 
-  /matcher/5.0.0:
-    resolution: {integrity: sha512-s2EMBOWtXFc8dgqvoAzKJXxNHibcdJMV0gwqKUaw9E2JBJuGUK7DrNKrA6g/i+v72TT16+6sVm5mS3thaMLQUw==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      escape-string-regexp: 5.0.0
-    dev: true
-
-  /md5-hex/3.0.1:
-    resolution: {integrity: sha512-BUiRtTtV39LIJwinWBjqVsU9xhdnz7/i889V859IBFpuqGAj6LuOvHv5XLbgZ2R7ptJoJaEcxkv88/h25T7Ciw==}
-    engines: {node: '>=8'}
-    dependencies:
-      blueimp-md5: 2.19.0
-    dev: true
-
-  /mem/9.0.2:
-    resolution: {integrity: sha512-F2t4YIv9XQUBHt6AOJ0y7lSmP1+cY7Fm1DRh9GClTGzKST7UWLMx6ly9WZdLH/G/ppM5RL4MlQfRT71ri9t19A==}
-    engines: {node: '>=12.20'}
-    dependencies:
-      map-age-cleaner: 0.1.3
-      mimic-fn: 4.0.0
-    dev: true
-
   /memorystream/0.3.1:
     resolution: {integrity: sha512-S3UwM3yj5mtUSEfP41UZmt/0SCoVYUcU1rkXv+BQ5Ig8ndL4sPoJNBUJERafdPb5jjHJGuMgytgKvKIf58XNBw==}
     engines: {node: '>= 0.10.0'}
@@ -2221,10 +1975,6 @@ packages:
     resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
     dev: true
 
-  /ms/2.1.3:
-    resolution: {integrity: sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==}
-    dev: true
-
   /mz/2.7.0:
     resolution: {integrity: sha512-z81GNO7nnYMEhrGh9LeymoE4+Yr0Wn5McHIZMK5cfQCl+NDX08sCZgUc9/6MHni9IWuFLm1Z3HTCXu2z9fN62Q==}
     dependencies:
@@ -2245,11 +1995,6 @@ packages:
     resolution: {integrity: sha512-2xfmOrRkGogbTK9R6Leda0DGiXeY3p2NJpy4+gNCffdUvV6mdEJnaDEic1i3Ec2djAo8jWYoJMR5PB0MSMpxUA==}
     dev: true
 
-  /nofilter/3.1.0:
-    resolution: {integrity: sha512-l2NNj07e9afPnhAhvgVrCD/oy2Ai1yfLpuo3EpiO1jFTsB4sFz6oIfAfSZyQzVpkZQ9xS8ZS5g1jCBgq4Hwo0g==}
-    engines: {node: '>=12.19'}
-    dev: true
-
   /normalize-package-data/2.5.0:
     resolution: {integrity: sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==}
     dependencies:
@@ -2363,18 +2108,6 @@ packages:
       wcwidth: 1.0.1
     dev: true
 
-  /p-defer/1.0.0:
-    resolution: {integrity: sha512-wB3wfAxZpk2AzOfUMJNL+d36xothRSyj8EXOa4f6GMqYDN9BJaaSISbsk+wS9abmnebVw95C2Kb5t85UmpCxuw==}
-    engines: {node: '>=4'}
-    dev: true
-
-  /p-event/5.0.1:
-    resolution: {integrity: sha512-dd589iCQ7m1L0bmC5NLlVYfy3TbBEsMUfWx9PyAgPeIcFZ/E2yaTZ4Rz4MiBmmJShviiftHVXOqfnfzJ6kyMrQ==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      p-timeout: 5.1.0
-    dev: true
-
   /p-limit/3.1.0:
     resolution: {integrity: sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==}
     engines: {node: '>=10'}
@@ -2382,13 +2115,6 @@ packages:
       yocto-queue: 0.1.0
     dev: true
 
-  /p-limit/4.0.0:
-    resolution: {integrity: sha512-5b0R4txpzjPWVw/cXXUResoD4hb6U/x9BH08L7nw+GN1sezDzPdxeRvpc9c433fZhBan/wusjbCsqwqm4EIBIQ==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      yocto-queue: 1.0.0
-    dev: true
-
   /p-locate/5.0.0:
     resolution: {integrity: sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==}
     engines: {node: '>=10'}
@@ -2396,13 +2122,6 @@ packages:
       p-limit: 3.1.0
     dev: true
 
-  /p-locate/6.0.0:
-    resolution: {integrity: sha512-wPrq66Llhl7/4AGC6I+cqxT07LhXvWL08LNXz1fENOw0Ap4sRZZ/gZpTTJ5jpurzzzfS2W/Ge9BY3LgLjCShcw==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      p-limit: 4.0.0
-    dev: true
-
   /p-map/4.0.0:
     resolution: {integrity: sha512-/bjOqmgETBYB5BoEeGVea8dmvHb2m9GLy1E9W43yeyfP6QQCZGFNa+XRceJEuDB6zqr+gKpIAmlLebMpykw/MQ==}
     engines: {node: '>=10'}
@@ -2417,11 +2136,6 @@ packages:
       aggregate-error: 4.0.1
     dev: true
 
-  /p-timeout/5.1.0:
-    resolution: {integrity: sha512-auFDyzzzGZZZdHz3BtET9VEz0SE/uMEAx7uWfGPucfzEwwe/xH0iVeZibQmANYE/hp9T2+UUZT5m+BKyrDp3Ew==}
-    engines: {node: '>=12'}
-    dev: true
-
   /p-timeout/6.1.0:
     resolution: {integrity: sha512-s0y6Le9QYGELLzNpFIt6h8B2DHTVUDLStvxtvRMSKNKeuNVVWby2dZ+pIJpW4/pWr5a3s8W85wBNtc0ZA+lzCg==}
     engines: {node: '>=14.16'}
@@ -2445,21 +2159,11 @@ packages:
       lines-and-columns: 1.2.4
     dev: true
 
-  /parse-ms/3.0.0:
-    resolution: {integrity: sha512-Tpb8Z7r7XbbtBTrM9UhpkzzaMrqA2VXMT3YChzYltwV3P3pM6t8wl7TvpMnSTosz1aQAdVib7kdoys7vYOPerw==}
-    engines: {node: '>=12'}
-    dev: true
-
   /path-exists/4.0.0:
     resolution: {integrity: sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==}
     engines: {node: '>=8'}
     dev: true
 
-  /path-exists/5.0.0:
-    resolution: {integrity: sha512-RjhtfwJOxzcFmNOi6ltcbcu4Iu+FL3zEj83dk4kAS+fVpTxXLO1b38RvJgT/0QwvV/L3aY9TAnyv0EOqW4GoMQ==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dev: true
-
   /path-is-absolute/1.0.1:
     resolution: {integrity: sha512-AVbw3UJ2e9bq64vSaS9Am0fje1Pa8pbGqTTsmXfaIiMpnr5DlDhfJOuLj9Sf95ZPVDAUerDfEk88MPmPe7UCQg==}
     engines: {node: '>=0.10.0'}
@@ -2527,21 +2231,6 @@ packages:
     engines: {node: '>= 6'}
     dev: true
 
-  /pkg-conf/4.0.0:
-    resolution: {integrity: sha512-7dmgi4UY4qk+4mj5Cd8v/GExPo0K+SlY+hulOSdfZ/T6jVH6//y7NtzZo5WrfhDBxuQ0jCa7fLZmNaNh7EWL/w==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      find-up: 6.3.0
-      load-json-file: 7.0.1
-    dev: true
-
-  /plur/5.1.0:
-    resolution: {integrity: sha512-VP/72JeXqak2KiOzjgKtQen5y3IZHn+9GOuLDafPv0eXa47xq0At93XahYBs26MsifCQ4enGKwbjBTKgb9QJXg==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      irregular-plurals: 3.4.0
-    dev: true
-
   /postcss-load-config/3.1.4:
     resolution: {integrity: sha512-6DiM4E7v4coTE4uzA8U//WhtPwyhiim3eyjEMFCnUpzbrkK9wJHgKDT2mR+HbtSrd/NubVaYTOpSpjUl8NQeRg==}
     engines: {node: '>= 10'}
@@ -2564,13 +2253,6 @@ packages:
     hasBin: true
     dev: true
 
-  /pretty-ms/8.0.0:
-    resolution: {integrity: sha512-ASJqOugUF1bbzI35STMBUpZqdfYKlJugy6JBziGi2EE+AL5JPJGSzvpeVXojxrr0ViUYoToUjb5kjSEGf7Y83Q==}
-    engines: {node: '>=14.16'}
-    dependencies:
-      parse-ms: 3.0.0
-    dev: true
-
   /punycode/2.3.0:
     resolution: {integrity: sha512-rRV+zQD8tVFys26lAGR9WUuS4iUAngJScM+ZRSKtvl5tKeZ2t5bvdNFdNHBW9FWR4guGHlgmsZ1G7BSm2wTbuA==}
     engines: {node: '>=6'}
@@ -2642,6 +2324,18 @@ packages:
       strip-indent: 4.0.0
     dev: true
 
+  /redis-errors/1.2.0:
+    resolution: {integrity: sha512-1qny3OExCf0UvUV/5wpYKf2YwPcOqXzkwKKSmKHiE6ZMQs5heeE/c8eXK+PNllPvmjgAbfnsbpkGZWy8cBpn9w==}
+    engines: {node: '>=4'}
+    dev: true
+
+  /redis-parser/3.0.0:
+    resolution: {integrity: sha512-DJnGAeenTdpMEH6uAJRK/uiyEIH9WVsUmoLwzudwGJUwZPp80PDBWPHXSAGNPwNvIXAbe7MSUB1zQFugFml66A==}
+    engines: {node: '>=4'}
+    dependencies:
+      redis-errors: 1.2.0
+    dev: true
+
   /regexp.prototype.flags/1.4.3:
     resolution: {integrity: sha512-fjggEOO3slI6Wvgjwflkc4NFRCTZAu5CnNfBd5qOMYhWdn67nJBBu34/TkD++eeFmd8C9r9jfXJ27+nSiRkSUA==}
     engines: {node: '>= 0.4'}
@@ -2651,18 +2345,6 @@ packages:
       functions-have-names: 1.2.3
     dev: true
 
-  /require-directory/2.1.1:
-    resolution: {integrity: sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==}
-    engines: {node: '>=0.10.0'}
-    dev: true
-
-  /resolve-cwd/3.0.0:
-    resolution: {integrity: sha512-OrZaX2Mb+rJCpH/6CpSqt9xFVpN++x01XnN2ie9g6P5/3xelLAkXWVADpdz1IHD/KFfEXyE6V0U01OQ3UO2rEg==}
-    engines: {node: '>=8'}
-    dependencies:
-      resolve-from: 5.0.0
-    dev: true
-
   /resolve-from/5.0.0:
     resolution: {integrity: sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==}
     engines: {node: '>=8'}
@@ -2759,13 +2441,6 @@ packages:
       lru-cache: 6.0.0
     dev: true
 
-  /serialize-error/7.0.1:
-    resolution: {integrity: sha512-8I8TjW5KMOKsZQTvoxjuSIa7foAwPWGOts+6o7sgjz41/qMD9VQHEDxi6PBvK2l0MXUmqZyNpUK+T2tQaaElvw==}
-    engines: {node: '>=10'}
-    dependencies:
-      type-fest: 0.13.1
-    dev: true
-
   /shebang-command/1.2.0:
     resolution: {integrity: sha512-EV3L1+UQWGor21OmnvojK36mhg+TyIKDh3iFBKBohr5xeXIhNBcx8oWdgkTEEQ+BEFFYdLRuqMfd5L84N1V5Vg==}
     engines: {node: '>=0.10.0'}
@@ -2896,15 +2571,8 @@ packages:
     resolution: {integrity: sha512-rr+VVSXtRhO4OHbXUiAF7xW3Bo9DuuF6C5jH+q/x15j2jniycgKbxU09Hr0WqlSLUs4i4ltHGXqTe7VHclYWyA==}
     dev: true
 
-  /sprintf-js/1.0.3:
-    resolution: {integrity: sha512-D9cPgkvLlV3t3IzL0D0YLvGA9Ahk4PcvVwUbN0dSGr1aP0Nrt4AEnTUbuGvquEC0mA64Gqt1fzirlRs5ibXx8g==}
-    dev: true
-
-  /stack-utils/2.0.6:
-    resolution: {integrity: sha512-XlkWvfIm6RmsWtNJx+uqtKLS8eqFbxUg0ZzLXqY0caEy9l7hruX8IpiDnjsLavoBgqCCR71TqWO8MaXYheJ3RQ==}
-    engines: {node: '>=10'}
-    dependencies:
-      escape-string-regexp: 2.0.0
+  /standard-as-callback/2.1.0:
+    resolution: {integrity: sha512-qoRRSyROncaz1z0mvYqIE4lCd9p2R90i6GxW3uZv5ucSu8tU7B5HXUP1gG8pVZsYNVaXjk8ClXHPttLyxAL48A==}
     dev: true
 
   /string-argv/0.3.1:
@@ -3010,16 +2678,6 @@ packages:
       ts-interface-checker: 0.1.13
     dev: true
 
-  /supertap/3.0.1:
-    resolution: {integrity: sha512-u1ZpIBCawJnO+0QePsEiOknOfCRq0yERxiAchT0i4li0WHNUJbf0evXXSXOcCAR4M8iMDoajXYmstm/qO81Isw==}
-    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
-    dependencies:
-      indent-string: 5.0.0
-      js-yaml: 3.14.1
-      serialize-error: 7.0.1
-      strip-ansi: 7.0.1
-    dev: true
-
   /supports-color/5.5.0:
     resolution: {integrity: sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==}
     engines: {node: '>=4'}
@@ -3032,11 +2690,6 @@ packages:
     engines: {node: '>= 0.4'}
     dev: true
 
-  /temp-dir/3.0.0:
-    resolution: {integrity: sha512-nHc6S/bwIilKHNRgK/3jlhDoIHcp45YgyiwcAk46Tr0LfEqGBVpmiAyuiuxeVE44m3mXnEeVhaipLOEWmH+Njw==}
-    engines: {node: '>=14.16'}
-    dev: true
-
   /thenify-all/1.6.0:
     resolution: {integrity: sha512-RNxQH/qI8/t3thXJDwcstUO4zeqo64+Uy/+sNVRBx4Xn2OX+OZ9oP+iJnNFqplFra2ZUVeKCSa2oVWi3T4uVmA==}
     engines: {node: '>=0.8'}
@@ -3054,11 +2707,6 @@ packages:
     resolution: {integrity: sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==}
     dev: true
 
-  /time-zone/1.0.0:
-    resolution: {integrity: sha512-TIsDdtKo6+XrPtiTm1ssmMngN1sAhyKnTO2kunQWqNPWIVvCm15Wmw4SWInwTVgJ5u/Tr04+8Ei9TNcw4x4ONA==}
-    engines: {node: '>=4'}
-    dev: true
-
   /to-fast-properties/2.0.0:
     resolution: {integrity: sha512-/OaKK0xYrs3DmxRYqL/yDc+FxFUVYhDlXMhRmv3z915w2HF1tnN1omB354j8VUGO/hbRzyD6Y3sA7v7GS/ceog==}
     engines: {node: '>=4'}
@@ -3142,11 +2790,6 @@ packages:
       fsevents: 2.3.2
     dev: true
 
-  /type-fest/0.13.1:
-    resolution: {integrity: sha512-34R7HTnG0XIJcBSn5XhDd7nNFPRcXYRZrBB2O2jdKqYODldSzBAqzsWoZYYvduky73toYS/ESqxPvkDf/F0XMg==}
-    engines: {node: '>=10'}
-    dev: true
-
   /type-fest/0.21.3:
     resolution: {integrity: sha512-t0rzBq87m3fVcduHDUFhKmyyX+9eo6WQjZvf51Ea/M0Q7+T374Jp1aUiyUl0GKxp8M/OETVHSDvmkyPgvX+X2w==}
     engines: {node: '>=10'}
@@ -3256,11 +2899,6 @@ packages:
     resolution: {integrity: sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==}
     dev: true
 
-  /well-known-symbols/2.0.0:
-    resolution: {integrity: sha512-ZMjC3ho+KXo0BfJb7JgtQ5IBuvnShdlACNkKkdsqBmYw3bPAaJfPeYUo6tLUaT5tG/Gkh7xkpBhKRQ9e7pyg9Q==}
-    engines: {node: '>=6'}
-    dev: true
-
   /whatwg-url/7.1.0:
     resolution: {integrity: sha512-WUu7Rg1DroM7oQvGWfOiAK21n74Gg+T4elXEQYkOhtyLeWiJFoOGLXPKI/9gzIie9CtwVLm8wtw6YJdKyxSjeg==}
     dependencies:
@@ -3332,19 +2970,6 @@ packages:
     resolution: {integrity: sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==}
     dev: true
 
-  /write-file-atomic/5.0.0:
-    resolution: {integrity: sha512-R7NYMnHSlV42K54lwY9lvW6MnSm1HSJqZL3xiSgi9E7//FYaI74r2G0rd+/X6VAMkHEdzxQaU5HUOXWUz5kA/w==}
-    engines: {node: ^14.17.0 || ^16.13.0 || >=18.0.0}
-    dependencies:
-      imurmurhash: 0.1.4
-      signal-exit: 3.0.7
-    dev: true
-
-  /y18n/5.0.8:
-    resolution: {integrity: sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==}
-    engines: {node: '>=10'}
-    dev: true
-
   /yallist/3.1.1:
     resolution: {integrity: sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==}
     dev: true
@@ -3368,30 +2993,7 @@ packages:
     engines: {node: '>=10'}
     dev: true
 
-  /yargs-parser/21.1.1:
-    resolution: {integrity: sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==}
-    engines: {node: '>=12'}
-    dev: true
-
-  /yargs/17.6.2:
-    resolution: {integrity: sha512-1/9UrdHjDZc0eOU0HxOHoS78C69UD3JRMvzlJ7S79S2nTaWRA/whGCTV8o9e/N/1Va9YIV7Q4sOxD8VV4pCWOw==}
-    engines: {node: '>=12'}
-    dependencies:
-      cliui: 8.0.1
-      escalade: 3.1.1
-      get-caller-file: 2.0.5
-      require-directory: 2.1.1
-      string-width: 4.2.3
-      y18n: 5.0.8
-      yargs-parser: 21.1.1
-    dev: true
-
   /yocto-queue/0.1.0:
     resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
     engines: {node: '>=10'}
     dev: true
-
-  /yocto-queue/1.0.0:
-    resolution: {integrity: sha512-9bnSc/HEW2uRy67wc+T8UwauLuPJVn28jb+GtJY16iiKWyvmYJRXVT4UamsAEGQfPohgr2q4Tq0sQbQlxTfi1g==}
-    engines: {node: '>=12.20'}
-    dev: true
diff --git a/src/chatgpt-api.test.ts b/src/chatgpt-api.test.ts
deleted file mode 100644
index 5b798f9..0000000
--- a/src/chatgpt-api.test.ts
+++ /dev/null
@@ -1,131 +0,0 @@
-import test from 'ava'
-import dotenv from 'dotenv-safe'
-
-import * as types from './types'
-import { ChatGPTAPI } from './chatgpt-api'
-
-dotenv.config()
-
-const isCI = !!process.env.CI
-
-test('ChatGPTAPI invalid session token', async (t) => {
-  t.timeout(30 * 1000) // 30 seconds
-
-  t.throws(() => new ChatGPTAPI({ sessionToken: null, clearanceToken: null }), {
-    message: 'ChatGPT invalid session token'
-  })
-
-  await t.throwsAsync(
-    async () => {
-      const chatgpt = new ChatGPTAPI({
-        sessionToken: 'invalid',
-        clearanceToken: 'invalid'
-      })
-      await chatgpt.initSession()
-    },
-    {
-      instanceOf: types.ChatGPTError,
-      message: 'ChatGPT failed to refresh auth token. Error: Unauthorized'
-    }
-  )
-})
-
-test('ChatGPTAPI valid session token', async (t) => {
-  if (!isCI) {
-    t.timeout(2 * 60 * 1000) // 2 minutes
-  }
-
-  t.notThrows(
-    () =>
-      new ChatGPTAPI({
-        sessionToken: 'fake valid session token',
-        clearanceToken: 'invalid'
-      })
-  )
-
-  await t.notThrowsAsync(
-    (async () => {
-      const chatgpt = new ChatGPTAPI({
-        sessionToken: process.env.SESSION_TOKEN,
-        clearanceToken: process.env.CLEARANCE_TOKEN
-      })
-
-      // Don't make any real API calls using our session token if we're running on CI
-      if (!isCI) {
-        await chatgpt.initSession()
-        const response = await chatgpt.sendMessage('test')
-        console.log('chatgpt response', response)
-
-        t.truthy(response)
-        t.is(typeof response, 'string')
-      }
-    })()
-  )
-})
-
-if (!isCI) {
-  test('ChatGPTAPI expired session token', async (t) => {
-    t.timeout(30 * 1000) // 30 seconds
-    const expiredSessionToken = process.env.TEST_EXPIRED_SESSION_TOKEN
-
-    await t.throwsAsync(
-      async () => {
-        const chatgpt = new ChatGPTAPI({
-          sessionToken: expiredSessionToken,
-          clearanceToken: 'invalid'
-        })
-        await chatgpt.initSession()
-      },
-      {
-        instanceOf: types.ChatGPTError,
-        message:
-          'ChatGPT failed to refresh auth token. Error: session token may have expired'
-      }
-    )
-  })
-}
-
-if (!isCI) {
-  test('ChatGPTAPI timeout', async (t) => {
-    t.timeout(30 * 1000) // 30 seconds
-
-    await t.throwsAsync(
-      async () => {
-        const chatgpt = new ChatGPTAPI({
-          sessionToken: process.env.SESSION_TOKEN,
-          clearanceToken: process.env.CLEARANCE_TOKEN
-        })
-
-        await chatgpt.sendMessage('test', {
-          timeoutMs: 1
-        })
-      },
-      {
-        message: 'ChatGPT timed out waiting for response'
-      }
-    )
-  })
-
-  test('ChatGPTAPI abort', async (t) => {
-    t.timeout(30 * 1000) // 30 seconds
-
-    await t.throwsAsync(
-      async () => {
-        const chatgpt = new ChatGPTAPI({
-          sessionToken: process.env.SESSION_TOKEN,
-          clearanceToken: process.env.CLEARANCE_TOKEN
-        })
-
-        const abortController = new AbortController()
-        setTimeout(() => abortController.abort(new Error('testing abort')), 10)
-
-        await chatgpt.sendMessage('test', {
-          abortSignal: abortController.signal
-        })
-      },
-      {
-        message: 'testing abort'
-      }
-    )
-  })
-}
diff --git a/src/chatgpt-api.ts b/src/chatgpt-api.ts
index f43c437..23eeb08 100644
--- a/src/chatgpt-api.ts
+++ b/src/chatgpt-api.ts
@@ -1,4 +1,5 @@
 import { encode as gptEncode } from 'gpt-3-encoder'
+import Keyv from 'keyv'
 import pTimeout from 'p-timeout'
 import QuickLRU from 'quick-lru'
 import { v4 as uuidv4 } from 'uuid'
@@ -7,26 +8,30 @@ import * as types from './types'
 import { fetch } from './fetch'
 import { fetchSSE } from './fetch-sse'
 
+// NOTE: this is not a public model, but it was leaked by the ChatGPT webapp.
 const CHATGPT_MODEL = 'text-chat-davinci-002-20230126'
+
 const USER_LABEL = 'User'
 const ASSISTANT_LABEL = 'ChatGPT'
 
 export class ChatGPTAPI {
   protected _apiKey: string
   protected _apiBaseUrl: string
-  protected _model: string
-  protected _temperature: number
-  protected _presencePenalty: number
-  protected _stop: string[]
+  protected _completionParams: types.openai.CompletionParams
   protected _debug: boolean
+
   protected _getMessageById: types.GetMessageByIdFunction
-  protected _messageCache: QuickLRU<string, types.ChatMessage>
+  protected _upsertMessage: types.UpsertMessageFunction
+
+  protected _messageStore: Keyv<types.ChatMessage>
 
   /**
    * Creates a new client wrapper around OpenAI's completion API using the
    * unofficial ChatGPT model.
    *
-   * @param debug - Optional enables logging debugging into to stdout
+   * @param apiKey - OpenAI API key (required).
+   * @param debug - Optional enables logging debugging info to stdout.
+   * @param stop - Up to 4 sequences where the API will stop generating further tokens. The returned text will not contain the stop sequence.
    */
   constructor(opts: {
     apiKey: string
@@ -34,44 +39,48 @@ export class ChatGPTAPI {
     /** @defaultValue `'https://api.openai.com'` **/
     apiBaseUrl?: string
 
-    /** @defaultValue `'text-chat-davinci-002-20230126'` **/
-    model?: string
-
-    /** @defaultValue 0.7 **/
-    temperature?: number
-
-    /** @defaultValue 0.6 **/
-    presencePenalty?: number
-
-    stop?: string[]
+    completionParams?: types.openai.CompletionParams
 
     /** @defaultValue `false` **/
     debug?: boolean
 
+    messageStore?: Keyv
+
     getMessageById?: types.GetMessageByIdFunction
+    upsertMessage?: types.UpsertMessageFunction
   }) {
     const {
       apiKey,
       apiBaseUrl = 'https://api.openai.com',
-      model = CHATGPT_MODEL,
-      temperature = 0.7,
-      presencePenalty = 0.6,
-      stop = ['<|im_end|>'],
       debug = false,
-      getMessageById = this._defaultGetMessageById
+      messageStore,
+      getMessageById = this._defaultGetMessageById,
+      upsertMessage = this._defaultUpsertMessage,
+      completionParams
     } = opts
 
     this._apiKey = apiKey
     this._apiBaseUrl = apiBaseUrl
-    this._model = model
-    this._temperature = temperature
-    this._presencePenalty = presencePenalty
-    this._stop = stop
     this._debug = !!debug
-    this._getMessageById = getMessageById
 
-    // override `getMessageById` if you want persistence
-    this._messageCache = new QuickLRU({ maxSize: 10000 })
+    this._completionParams = {
+      model: CHATGPT_MODEL,
+      temperature: 0.7,
+      presence_penalty: 0.6,
+      stop: ['<|im_end|>'],
+      ...completionParams
+    }
+
+    this._getMessageById = getMessageById
+    this._upsertMessage = upsertMessage
+
+    if (messageStore) {
+      this._messageStore = messageStore
+    } else {
+      this._messageStore = new Keyv<types.ChatMessage, any>({
+        store: new QuickLRU<string, types.ChatMessage>({ maxSize: 10000 })
+      })
+    }
 
     if (!this._apiKey) {
       throw new Error('ChatGPT invalid apiKey')
@@ -91,7 +100,6 @@ export class ChatGPTAPI {
    * @param opts.conversationId - Optional ID of a conversation to continue
    * @param opts.parentMessageId - Optional ID of the previous message in the conversation
    * @param opts.messageId - Optional ID of the message to send (defaults to a random UUID)
-   * @param opts.action - Optional ChatGPT `action` (either `next` or `variant`)
    * @param opts.timeoutMs - Optional timeout in milliseconds (defaults to no timeout)
    * @param opts.onProgress - Optional callback which will be invoked every time the partial response is updated
    * @param opts.abortSignal - Optional callback used to abort the underlying `fetch` call using an [AbortController](https://developer.mozilla.org/en-US/docs/Web/API/AbortController)
@@ -119,15 +127,15 @@ export class ChatGPTAPI {
       abortSignal = abortController.signal
     }
 
-    const input: types.ChatMessage = {
+    const message: types.ChatMessage = {
       role: 'user',
       id: messageId,
       parentMessageId,
       conversationId,
       text
     }
+    await this._upsertMessage(message)
 
-    this._messageCache.set(input.id, input)
     const { prompt, maxTokens } = await this._buildPrompt(text, opts)
 
     const result: types.ChatMessage = {
@@ -146,13 +154,10 @@ export class ChatGPTAPI {
           Authorization: `Bearer ${this._apiKey}`
         }
         const body = {
+          max_tokens: maxTokens,
+          ...this._completionParams,
           prompt,
-          stream,
-          model: this._model,
-          temperature: this._temperature,
-          presence_penalty: this._presencePenalty,
-          stop: this._stop,
-          max_tokens: maxTokens
+          stream
         }
 
         if (this._debug) {
@@ -173,7 +178,8 @@ export class ChatGPTAPI {
               }
 
               try {
-                const response = JSON.parse(data)
+                const response: types.openai.CompletionResponse =
+                  JSON.parse(data)
 
                 if (response?.id && response?.choices?.length) {
                   result.id = response.id
@@ -207,7 +213,7 @@ export class ChatGPTAPI {
               return reject(error)
             }
 
-            const response = await res.json()
+            const response: types.openai.CompletionResponse = await res.json()
             if (this._debug) {
               console.log(response)
             }
@@ -221,10 +227,8 @@ export class ChatGPTAPI {
           }
         }
       }
-    )
-
-    responseP.then((message) => {
-      this._messageCache.set(message.id, message)
+    ).then((message) => {
+      return this._upsertMessage(message).then(() => message)
     })
 
     if (timeoutMs) {
@@ -266,7 +270,7 @@ Current date: ${currentDate}\n\n`
 
     const maxNumTokens = 3097
     let { parentMessageId } = opts
-    let nextPromptBody = `${USER_LABEL}:\n\n${message}`
+    let nextPromptBody = `${USER_LABEL}:\n\n${message}<|im_end|>`
     let promptBody = ''
     let prompt: string
     let numTokens: number
@@ -315,7 +319,7 @@ Current date: ${currentDate}\n\n`
   }
 
   protected async _getTokenCount(text: string) {
-    if (this._model === CHATGPT_MODEL) {
+    if (this._completionParams.model === CHATGPT_MODEL) {
       // With this model, "<|im_end|>" is 1 token, but tokenizers aren't aware of it yet.
       // Replace it with "<|endoftext|>" (which it does know about) so that the tokenizer can count it as 1 token.
       text = text.replace(/<\|im_end\|>/g, '<|endoftext|>')
@@ -327,6 +331,12 @@ Current date: ${currentDate}\n\n`
   protected async _defaultGetMessageById(
     id: string
   ): Promise<types.ChatMessage> {
-    return this._messageCache.get(id)
+    return this._messageStore.get(id)
+  }
+
+  protected async _defaultUpsertMessage(
+    message: types.ChatMessage
+  ): Promise<void> {
+    this._messageStore.set(message.id, message)
   }
 }
diff --git a/src/types.ts b/src/types.ts
index 6ede024..c92a8b8 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -16,14 +16,128 @@ export interface ChatMessage {
   id: string
   text: string
   role: Role
-
   parentMessageId?: string
   conversationId?: string
 }
 
-export type GetMessageByIdFunction = (id: string) => Promise<ChatMessage>
-
 export class ChatGPTError extends Error {
   statusCode?: number
   statusText?: string
 }
+
+/** Returns a chat message from a store by it's ID (or null if not found). */
+export type GetMessageByIdFunction = (id: string) => Promise<ChatMessage>
+
+/** Upserts a chat message to a store. */
+export type UpsertMessageFunction = (message: ChatMessage) => Promise<void>
+
+export namespace openai {
+  export type CompletionParams = {
+    /** ID of the model to use. */
+    model: string
+
+    /** The string prompt to generate a completion for. */
+    prompt: string
+
+    /**
+     * The suffix that comes after a completion of inserted text.
+     */
+    suffix?: string
+
+    /**
+     * The maximum number of tokens to generate in the completion.  The token count of your prompt plus `max_tokens` cannot exceed the model\'s context length. Most models have a context length of 2048 tokens (except for the newest models, which support 4096).
+     */
+    max_tokens?: number
+
+    /**
+     * What [sampling temperature](https://towardsdatascience.com/how-to-sample-from-language-models-682bceb97277) to use. Higher values means the model will take more risks. Try 0.9 for more creative applications, and 0 (argmax sampling) for ones with a well-defined answer.  We generally recommend altering this or `top_p` but not both.
+     */
+    temperature?: number
+
+    /**
+     * An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.  We generally recommend altering this or `temperature` but not both.
+     */
+    top_p?: number
+
+    /**
+     * Include the log probabilities on the `logprobs` most likely tokens, as well the chosen tokens. For example, if `logprobs` is 5, the API will return a list of the 5 most likely tokens. The API will always return the `logprob` of the sampled token, so there may be up to `logprobs+1` elements in the response.  The maximum value for `logprobs` is 5. If you need more than this, please contact us through our [Help center](https://help.openai.com) and describe your use case.
+     */
+    logprobs?: number
+
+    /**
+     * Echo back the prompt in addition to the completion
+     */
+    echo?: boolean
+
+    /**
+     * Up to 4 sequences where the API will stop generating further tokens. The returned text will not contain the stop sequence.
+     */
+    stop?: string[]
+
+    /**
+     * Number between -2.0 and 2.0. Positive values penalize new tokens based on whether they appear in the text so far, increasing the model\'s likelihood to talk about new topics.  [See more information about frequency and presence penalties.](/docs/api-reference/parameter-details)
+     */
+    presence_penalty?: number
+
+    /**
+     * Number between -2.0 and 2.0. Positive values penalize new tokens based on their existing frequency in the text so far, decreasing the model\'s likelihood to repeat the same line verbatim.  [See more information about frequency and presence penalties.](/docs/api-reference/parameter-details)
+     */
+    frequency_penalty?: number
+
+    /**
+     * Generates `best_of` completions server-side and returns the \"best\" (the one with the highest log probability per token). Results cannot be streamed.  When used with `n`, `best_of` controls the number of candidate completions and `n` specifies how many to return – `best_of` must be greater than `n`.  **Note:** Because this parameter generates many completions, it can quickly consume your token quota. Use carefully and ensure that you have reasonable settings for `max_tokens` and `stop`.
+     */
+    best_of?: number
+
+    /**
+     * Modify the likelihood of specified tokens appearing in the completion.  Accepts a json object that maps tokens (specified by their token ID in the GPT tokenizer) to an associated bias value from -100 to 100. You can use this [tokenizer tool](/tokenizer?view=bpe) (which works for both GPT-2 and GPT-3) to convert text to token IDs. Mathematically, the bias is added to the logits generated by the model prior to sampling. The exact effect will vary per model, but values between -1 and 1 should decrease or increase likelihood of selection; values like -100 or 100 should result in a ban or exclusive selection of the relevant token.  As an example, you can pass `{\"50256\": -100}` to prevent the <|endoftext|> token from being generated.
+     */
+    logit_bias?: Record<string, number>
+
+    /**
+     * A unique identifier representing your end-user, which will help OpenAI to monitor and detect abuse. [Learn more](/docs/usage-policies/end-user-ids).
+     */
+    user?: string
+
+    /* NOTE: this is handled by the `sendMessage` function.
+     *
+     * Whether to stream back partial progress. If set, tokens will be sent as data-only [server-sent events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#Event_stream_format) as they become available, with the stream terminated by a `data: [DONE]` message.
+     */
+    // stream?: boolean | null
+
+    /**
+     * NOT SUPPORTED
+     */
+    /**
+     * How many completions to generate for each prompt.  **Note:** Because this parameter generates many completions, it can quickly consume your token quota. Use carefully and ensure that you have reasonable settings for `max_tokens` and `stop`.
+     */
+    // 'n'?: number | null;
+  }
+
+  export type CompletionResponse = {
+    id: string
+    object: string
+    created: number
+    model: string
+    choices: CompletionResponseChoices
+    usage?: CompletionResponseUsage
+  }
+
+  export type CompletionResponseChoices = {
+    text?: string
+    index?: number
+    logprobs?: {
+      tokens?: Array<string>
+      token_logprobs?: Array<number>
+      top_logprobs?: Array<object>
+      text_offset?: Array<number>
+    } | null
+    finish_reason?: string
+  }[]
+
+  export type CompletionResponseUsage = {
+    prompt_tokens: number
+    completion_tokens: number
+    total_tokens: number
+  }
+}