Add requestUpdates() and cancelUpdates() methods

Author: Shubham

objectbox/c.py

@@ -1259,3 +1259,9 @@ class Feature(IntEnum):
 
 
 obx_has_feature = c_fn('obx_has_feature', ctypes.c_bool, [OBXFeature])
+
+# OBX_C_API obx_err obx_sync_updates_request(OBX_sync* sync, bool subscribe_for_pushes);
+obx_sync_updates_request = c_fn_rc('obx_sync_updates_request', [OBX_sync_p, ctypes.c_bool])
+
+# OBX_C_API obx_err obx_sync_updates_cancel(OBX_sync* sync);
+obx_sync_updates_cancel = c_fn_rc('obx_sync_updates_cancel', [OBX_sync_p])

objectbox/sync.py

@@ -245,6 +245,12 @@ def stop(self):
     def trigger_reconnect(self) -> bool:
         return c.check_obx_success(c.obx_sync_trigger_reconnect(self.__c_sync_client_ptr))
 
+    def request_updates(self, subscribe_for_future_pushes: bool) -> bool:
+        return c.check_obx_success(c.obx_sync_updates_request(self.__c_sync_client_ptr, subscribe_for_future_pushes))
+
+    def cancel_updates(self) -> bool:
+        return c.check_obx_success(c.obx_sync_updates_cancel(self.__c_sync_client_ptr))
+
     @staticmethod
     def protocol_version() -> int:
         return c.obx_sync_protocol_version()