Add type hints to synapse/tests/rest/admin (#11590)

tests/rest/admin/test_registration_tokens.py

@@ -14,6 +14,7 @@
 import random
 import string
 from http import HTTPStatus
+from typing import Optional
 
 from twisted.test.proto_helpers import MemoryReactor
 
@@ -42,21 +43,27 @@ class ManageRegistrationTokensTestCase(unittest.HomeserverTestCase):
 
         self.url = "/_synapse/admin/v1/registration_tokens"
 
-    def _new_token(self, **kwargs) -> str:
+    def _new_token(
+        self,
+        token: Optional[str] = None,
+        uses_allowed: Optional[int] = None,
+        pending: int = 0,
+        completed: int = 0,
+        expiry_time: Optional[int] = None,
+    ) -> str:
         """Helper function to create a token."""
-        token = kwargs.get(
-            "token",
-            "".join(random.choices(string.ascii_letters, k=8)),
-        )
+        if token is None:
+            token = "".join(random.choices(string.ascii_letters, k=8))
+
         self.get_success(
             self.store.db_pool.simple_insert(
                 "registration_tokens",
                 {
                     "token": token,
-                    "uses_allowed": kwargs.get("uses_allowed", None),
-                    "pending": kwargs.get("pending", 0),
-                    "completed": kwargs.get("completed", 0),
-                    "expiry_time": kwargs.get("expiry_time", None),
+                    "uses_allowed": uses_allowed,
+                    "pending": pending,
+                    "completed": completed,
+                    "expiry_time": expiry_time,
                 },
             )
         )