fix unit tests

Author: Roman

bittensor/core/subtensor_api/chain.py

@@ -14,6 +14,7 @@ def __init__(self, subtensor: Union["_Subtensor", "_AsyncSubtensor"]):
         self.get_minimum_required_stake = subtensor.get_minimum_required_stake
         self.get_vote_data = subtensor.get_vote_data
         self.get_timestamp = subtensor.get_timestamp
+        self.is_fast_blocks = subtensor.is_fast_blocks
         self.last_drand_round = subtensor.last_drand_round
         self.state_call = subtensor.state_call
         self.tx_rate_limit = subtensor.tx_rate_limit

bittensor/core/subtensor_api/utils.py

@@ -101,6 +101,7 @@ def add_legacy_methods(subtensor: "SubtensorApi"):
     subtensor.get_unstake_fee = subtensor._subtensor.get_unstake_fee
     subtensor.get_vote_data = subtensor._subtensor.get_vote_data
     subtensor.immunity_period = subtensor._subtensor.immunity_period
+    subtensor.is_fast_blocks = subtensor._subtensor.is_fast_blocks
     subtensor.is_hotkey_delegate = subtensor._subtensor.is_hotkey_delegate
     subtensor.is_hotkey_registered = subtensor._subtensor.is_hotkey_registered
     subtensor.is_hotkey_registered_any = subtensor._subtensor.is_hotkey_registered_any