doc : docstring updated

samila/functions.py

@@ -525,6 +525,8 @@ def nft_storage_upload(api_key, data, timeout, gateway):
     :type data: binary
     :param timeout: upload timeout (in seconds)
     :type timeout: int
+    :param gateway: IPFS gateway
+    :type gateway: Gateway enum
     :return: result as dict
     """
     result = {"status": True, "message": NFT_STORAGE_SUCCESS_MESSAGE}

samila/genimage.py

@@ -191,7 +191,7 @@ class GenerativeImage:
         :param timeout: upload timeout (in seconds)
         :type timeout: int
         :param gateway: IPFS gateway
-        :type gateway: Gateway
+        :type gateway: Gateway enum
         :return: result as dict
         """
         save_params_filter(self, depth)