Charge: Add customer and created to the list API

Made from Stripe documentation:
https://stripe.com/docs/api/charges/list#list_charges-customer

localstripe/resources.py

@@ -475,6 +475,34 @@ def amount_refunded(self):
     def refunded(self):
         return self.amount <= self.amount_refunded
 
+    @classmethod
+    def _api_list_all(cls, url, customer=None, created=None, limit=10):
+        try:
+            assert _type(customer) is str and customer.startswith('cus_')
+            assert type(created) in (dict, str)
+            if type(created) is dict:
+                assert len(created.keys()) == 1 and \
+                    list(created.keys())[0] in ('gt', 'gte', 'lt', 'lte')
+                date = try_convert_to_int(list(created.values())[0])
+            elif type(created) is str:
+                date = try_convert_to_int(created)
+            assert type(date) is int and date > 1500000000
+        except AssertionError:
+            raise UserError(400, 'Bad request')
+
+        Customer._api_retrieve(customer)  # to return 404 if not existant
+
+        if created:
+            if type(created) is str or not created.get('gt'):
+                raise UserError(500, 'Not implemented')
+
+        li = super(Charge, cls)._api_list_all(url, limit=limit)
+        li._list = [c for c in li._list if c.customer == customer]
+        if created.get('gt'):
+            li._list = [c for c in li._list
+                        if c.created > try_convert_to_int(created['gt'])]
+        return li
+
 
 extra_apis.append((
     ('POST', '/v1/charges/{id}/capture', Charge._api_capture)))

test.sh

@@ -754,3 +754,9 @@ status=$(
   curl -sSf -u $SK: $HOST/v1/charges/$charge \
   | grep -oE '"status": "failed"')
 [ -n "$status" ]
+
+# list charges
+total_count=$(
+  curl -sSf -u $SK: $HOST/v1/charges?customer=$cus\&created%5Bgt%5D=1588166306 \
+  | grep -oE '"total_count": 6')
+[ -n "$total_count" ]