code: def no_split(self):
      name = f"R = R dot R"
      dim_partition_dict = {
          "input": {},
          "other": {},
          "output": {},
          "bias": {},
      }
      sharding_spec_mapping = self.to_sharding_spec_mapping(
          dim_partition_dict
      )
      communication_action_mapping = {}
      return self.get_sharding_strategy(
          name=name,
          sharding_spec_mapping=sharding_spec_mapping,
          communication_action_mapping=communication_action_mapping,
      )
  
imports: import operator
  from functools import reduce
  from typing import List
  from colossalai.auto_parallel.tensor_shard.options import SolverPerference
  from colossalai.auto_parallel.tensor_shard.sharding_strategy import CommType, MemoryCost, ShardingStrategy, TrainCycleItem
  from colossalai.auto_parallel.tensor_shard.utils import ignore_sharding_exception
  from colossalai.tensor.shape_consistency import CollectiveCommPattern
  from .strategy_generator import StrategyGenerator
label_desc: Use image node_id 3 for calling the DotProductStrategyGenerator obj's underlying member method code with example usage: obj.no_split() and returns: self