Annotate Subscription.update() and SubscriptionGateway.update()

Author: cuu508

stubs/braintree/braintree/subscription.pyi

@@ -37,7 +37,7 @@ class Subscription(Resource):
     @staticmethod
     def retry_charge(subscription_id, amount=None, submit_for_settlement: bool = False): ...
     @staticmethod
-    def update(subscription_id, params=None): ...
+    def update(subscription_id: str, params: dict[str, Incomplete] | None = None) -> SuccessfulResult | ErrorResult | None: ...
     @staticmethod
     def cancel(subscription_id): ...
     @staticmethod

stubs/braintree/braintree/subscription_gateway.pyi

@@ -13,4 +13,6 @@ class SubscriptionGateway:
     def find(self, subscription_id: str) -> Subscription: ...
     def retry_charge(self, subscription_id, amount=None, submit_for_settlement: bool = False): ...
     def search(self, *query): ...
-    def update(self, subscription_id, params=None): ...
+    def update(
+        self, subscription_id: str, params: dict[str, Incomplete] | None = None
+    ) -> SuccessfulResult | ErrorResult | None: ...