extern const mp_obj_fun_native_t mp_stream_read_obj;
extern const mp_obj_fun_native_t mp_stream_readall_obj;
extern const mp_obj_fun_native_t mp_stream_unbuffered_readline_obj;
extern const mp_obj_fun_native_t mp_stream_write_obj;

// Iterator which uses mp_stream_unbuffered_readline_obj
mp_obj_t mp_stream_unbuffered_iter(mp_obj_t self);