Fix type hint errors detected by pytype 2021.7.19

Author: seratch

slack_bolt/adapter/aws_lambda/local_lambda_client.py

@@ -14,7 +14,7 @@ def __init__(self, app: Chalice, config: Config) -> None:
 
     def invoke(
         self,
-        FunctionName: str = None,
+        FunctionName: str,
         InvocationType: str = "Event",
         Payload: str = "{}",
     ) -> InvokeResponse:

slack_bolt/authorization/authorize.py

@@ -42,6 +42,7 @@ def __init__(
         self.arg_names = inspect.getfullargspec(func).args
 
     def __call__(
+
         self,
         *,
         context: BoltContext,

slack_bolt/middleware/ssl_check/ssl_check.py

@@ -1,4 +1,5 @@
-from typing import Callable
+from logging import Logger
+from typing import Callable, Optional
 
 from slack_bolt.logger import get_bolt_logger
 from slack_bolt.middleware.middleware import Middleware
@@ -7,7 +8,10 @@
 
 
 class SslCheck(Middleware):  # type: ignore
-    def __init__(self, verification_token: str = None):
+    verification_token: Optional[str]
+    logger: Logger
+
+    def __init__(self, verification_token: Optional[str] = None):
         """Handles `ssl_check` requests.
         Refer to https://api.slack.com/interactivity/slash-commands for details.