feat: mypy for all type check (#10921)

api/extensions/storage/opendal_storage.py

@@ -3,7 +3,7 @@ import os
 from collections.abc import Generator
 from pathlib import Path
 
-import opendal
+import opendal  # type: ignore[import]
 from dotenv import dotenv_values
 
 from extensions.storage.base_storage import BaseStorage
@@ -18,7 +18,7 @@ def _get_opendal_kwargs(*, scheme: str, env_file_path: str = ".env", prefix: str
         if key.startswith(config_prefix):
             kwargs[key[len(config_prefix) :].lower()] = value
 
-    file_env_vars = dotenv_values(env_file_path)
+    file_env_vars: dict = dotenv_values(env_file_path) or {}
     for key, value in file_env_vars.items():
         if key.startswith(config_prefix) and key[len(config_prefix) :].lower() not in kwargs and value:
             kwargs[key[len(config_prefix) :].lower()] = value
@@ -48,7 +48,7 @@ class OpenDALStorage(BaseStorage):
         if not self.exists(filename):
             raise FileNotFoundError("File not found")
 
-        content = self.op.read(path=filename)
+        content: bytes = self.op.read(path=filename)
         logger.debug(f"file {filename} loaded")
         return content
 
@@ -75,7 +75,7 @@ class OpenDALStorage(BaseStorage):
         # error handler here when opendal python-binding has a exists method, we should use it
         # more https://github.com/apache/opendal/blob/main/bindings/python/src/operator.rs
         try:
-            res = self.op.stat(path=filename).mode.is_file()
+            res: bool = self.op.stat(path=filename).mode.is_file()
             logger.debug(f"file {filename} checked")
             return res
         except Exception: