move add_args

Author: Roman

bittensor/core/subtensor_api/__init__.py

@@ -88,7 +88,6 @@ def __init__(
 
         # define empty fields
         self.substrate = self._subtensor.substrate
-        self.add_args = self._subtensor.add_args
         self.chain_endpoint = self._subtensor.chain_endpoint
         self.close = self._subtensor.close
         self.config = self._subtensor.config
@@ -156,6 +155,10 @@ async def __aenter__(self):
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         await self.substrate.close()
 
+    @classmethod
+    def add_args(cls, parser):
+        _Subtensor.add_args(parser)
+
     @property
     def block(self):
         """Returns current chain block number."""