[NFC] polish colossalai/auto_parallel/tensor_shard/deprecated/op_handler/operator_handler.py code style (#1845)

colossalai/auto_parallel/tensor_shard/deprecated/op_handler/operator_handler.py

@@ -1,14 +1,16 @@
+from abc import ABC, abstractmethod
+from typing import Dict, List
 from webbrowser import Opera
+
 import torch
 import torch.nn as nn
-from abc import ABC, abstractmethod
 from torch.fx.node import Node
-from typing import Dict, List
+
+from colossalai.auto_parallel.tensor_shard.deprecated.constants import *
 from colossalai.device.device_mesh import DeviceMesh
 from colossalai.tensor.sharding_spec import ShardingSpec
-from .._utils import generate_resharding_costs, generate_sharding_spec
-from colossalai.auto_parallel.tensor_shard.deprecated.constants import *
 
+from .._utils import generate_resharding_costs, generate_sharding_spec
 from ..sharding_strategy import StrategiesVector
 
 __all__ = ['OperatorHandler']
@@ -60,7 +62,7 @@ class OperatorHandler(ABC):
     @abstractmethod
     def register_strategy(self) -> StrategiesVector:
         """
-        Register 
+        Register
         """
         pass