fix: Update cash balance methods to no longer require nested ID.

stripe/api_resources/customer.py

@@ -23,11 +23,6 @@
     http_verb="get",
     http_path="payment_methods",
 )
-@nested_resource_class_methods(
-    "cash_balance",
-    operations=["retrieve", "update"],
-    resource_plural="cash_balance",
-)
 @nested_resource_class_methods(
     "balance_transaction",
     operations=["create", "retrieve", "update", "list"],
@@ -120,3 +115,47 @@ def delete_discount(self, **params):
         url = self.instance_url() + "/discount"
         _, api_key = requestor.request("delete", url, params)
         self.refresh_from({"discount": None}, api_key, True)
+
+    @classmethod
+    def retrieve_cash_balance(
+        cls,
+        customer,
+        nested_id=None,
+        api_key=None,
+        stripe_version=None,
+        stripe_account=None,
+        **params
+    ):
+        # The nested_id parameter is required for backwards compatibility purposes and is ignored.
+        requestor = api_requestor.APIRequestor(
+            api_key, api_version=stripe_version, account=stripe_account
+        )
+        url = "/v1/customers/{customer}/cash_balance".format(
+            customer=util.sanitize_id(customer)
+        )
+        response, api_key = requestor.request("get", url, params)
+        return util.convert_to_stripe_object(
+            response, api_key, stripe_version, stripe_account
+        )
+
+    @classmethod
+    def modify_cash_balance(
+        cls,
+        customer,
+        nested_id=None,
+        api_key=None,
+        stripe_version=None,
+        stripe_account=None,
+        **params
+    ):
+        # The nested_id parameter is required for backwards compatibility purposes and is ignored.
+        requestor = api_requestor.APIRequestor(
+            api_key, api_version=stripe_version, account=stripe_account
+        )
+        url = "/v1/customers/{customer}/cash_balance".format(
+            customer=util.sanitize_id(customer)
+        )
+        response, api_key = requestor.request("post", url, params)
+        return util.convert_to_stripe_object(
+            response, api_key, stripe_version, stripe_account
+        )

tests/api_resources/test_customer.py

@@ -188,3 +188,42 @@ def test_is_listable_on_object(self, request_mock):
             "get", "/v1/customers/%s/payment_methods" % TEST_RESOURCE_ID
         )
         assert isinstance(resource, stripe.ListObject)
+
+
+class TestCustomerCashBalanceMethods(object):
+    # These tests are present for compatibility purposes. Previously the cash
+    # balance methods required None as a second nested_id parameter. The method
+    # has been patched to no longer require this, but we want to preserve
+    # compatibility for existing users.
+    def test_customer_cashbalance_retrieve_legacy_call_pattern(
+        self, request_mock
+    ):
+        stripe.Customer.retrieve_cash_balance("cus_123", None)
+        request_mock.assert_requested(
+            "get", "/v1/customers/cus_123/cash_balance"
+        )
+
+    def test_customer_cashbalance_modify_legacy_call_pattern(
+        self, request_mock
+    ):
+        stripe.Customer.modify_cash_balance(
+            "cus_123",
+            None,
+            settings={"reconciliation_mode": "manual"},
+        )
+        request_mock.assert_requested(
+            "post",
+            "/v1/customers/cus_123/cash_balance",
+            {"settings": {"reconciliation_mode": "manual"}},
+        )
+
+    def test_customer_cashbalance_modify_fixed_pattern(self, request_mock):
+        stripe.Customer.modify_cash_balance(
+            "cus_123",
+            settings={"reconciliation_mode": "manual"},
+        )
+        request_mock.assert_requested(
+            "post",
+            "/v1/customers/cus_123/cash_balance",
+            {"settings": {"reconciliation_mode": "manual"}},
+        )

tests/test_generated_examples.py

@@ -352,6 +352,21 @@ def test_apps_secret_delete_where(self, request_mock):
         )
         request_mock.assert_requested("post", "/v1/apps/secrets/delete")
 
+    def test_customer_cashbalance_retrieve(self, request_mock):
+        stripe.Customer.retrieve_cash_balance("cus_123")
+        request_mock.assert_requested(
+            "get", "/v1/customers/cus_123/cash_balance"
+        )
+
+    def test_customer_cashbalance_update(self, request_mock):
+        stripe.Customer.modify_cash_balance(
+            "cus_123",
+            settings={"reconciliation_mode": "manual"},
+        )
+        request_mock.assert_requested(
+            "post", "/v1/customers/cus_123/cash_balance"
+        )
+
     def test_customer_list(self, request_mock):
         stripe.Customer.list(limit=3)
         request_mock.assert_requested("get", "/v1/customers")