Include subscription set external id [ana-174] (#120)

Author: SrikalaB

chartmogul/api/activity.py

@@ -23,6 +23,7 @@ class _Schema(Schema):
         description = fields.String()
         type = fields.String()
         subscription_external_id = fields.String(data_key="subscription-external-id")
+        subscription_set_external_id = fields.String(data_key="subscription-set-external-id")
         plan_external_id = fields.String(data_key="plan-external-id")
         customer_name = fields.String(data_key="customer-name")
         customer_uuid = fields.String(data_key="customer-uuid")

test/api/test_activity.py

@@ -29,6 +29,7 @@ def test_all(self, mock_requests):
                         "type": "new_biz",
                         "currency": "USD",
                         "subscription-external-id": "sub_2",
+                        "subscription-set-external-id": "sub_2",
                         "plan-external-id": "11",
                         "customer-name": "customer_2",
                         "customer-uuid": "8bc55ab6-c3b5-11eb-ac45-2f9a49d75af7",