Annotate braintree's Address and AddressGateway classes (#14927)

stubs/braintree/braintree/address.pyi

@@ -1,7 +1,9 @@
 from _typeshed import Incomplete
 from typing import Final
 
+from braintree.error_result import ErrorResult
 from braintree.resource import Resource
+from braintree.successful_result import SuccessfulResult
 
 class Address(Resource):
     class ShippingMethod:
@@ -14,13 +16,15 @@ class Address(Resource):
         PickupInStore: Final = "pickup_in_store"
 
     @staticmethod
-    def create(params: dict[str, Incomplete] | None = None): ...
+    def create(params: dict[str, Incomplete] | None = None) -> SuccessfulResult | ErrorResult | None: ...
     @staticmethod
-    def delete(customer_id: str, address_id: str): ...
+    def delete(customer_id: str, address_id: str) -> SuccessfulResult: ...
     @staticmethod
-    def find(customer_id: str, address_id: str): ...
+    def find(customer_id: str, address_id: str) -> Address: ...
     @staticmethod
-    def update(customer_id: str, address_id: str, params: dict[str, Incomplete] | None = None): ...
+    def update(
+        customer_id: str, address_id: str, params: dict[str, Incomplete] | None = None
+    ) -> SuccessfulResult | ErrorResult | None: ...
     @staticmethod
     def create_signature() -> list[str | dict[str, list[str]]]: ...
     @staticmethod

stubs/braintree/braintree/address_gateway.pyi

@@ -1,13 +1,14 @@
 from _typeshed import Incomplete
 
 from braintree.address import Address
+from braintree.braintree_gateway import BraintreeGateway
 from braintree.error_result import ErrorResult
 from braintree.successful_result import SuccessfulResult
 
 class AddressGateway:
-    gateway: Incomplete
+    gateway: BraintreeGateway
     config: Incomplete
-    def __init__(self, gateway) -> None: ...
+    def __init__(self, gateway: BraintreeGateway) -> None: ...
     def create(self, params: dict[str, Incomplete] | None = None) -> SuccessfulResult | ErrorResult | None: ...
     def delete(self, customer_id: str, address_id: str) -> SuccessfulResult: ...
     def find(self, customer_id: str, address_id: str) -> Address: ...