Make minor correction to type of auth_checkers callbacks (#11253)

changelog.d/11253.misc

@@ -0,0 +1 @@
+Make minor correction to the type of `auth_checkers` callbacks.

docs/modules/password_auth_provider_callbacks.md

@@ -11,7 +11,7 @@ registered by using the Module API's `register_password_auth_provider_callbacks`
 _First introduced in Synapse v1.46.0_
 
 ```python
- auth_checkers: Dict[Tuple[str,Tuple], Callable]
+auth_checkers: Dict[Tuple[str, Tuple[str, ...]], Callable]
 ```
 
 A dict mapping from tuples of a login type identifier (such as `m.login.password`) and a

synapse/handlers/auth.py

@@ -1989,7 +1989,9 @@ class PasswordAuthProvider:
         self,
         check_3pid_auth: Optional[CHECK_3PID_AUTH_CALLBACK] = None,
         on_logged_out: Optional[ON_LOGGED_OUT_CALLBACK] = None,
-        auth_checkers: Optional[Dict[Tuple[str, Tuple], CHECK_AUTH_CALLBACK]] = None,
+        auth_checkers: Optional[
+            Dict[Tuple[str, Tuple[str, ...]], CHECK_AUTH_CALLBACK]
+        ] = None,
     ) -> None:
         # Register check_3pid_auth callback
         if check_3pid_auth is not None: