code: def set_data_none(self):
      self.param.data = get_empty_tensor(
          self.sharded_data_tensor.device,
          self.sharded_data_tensor.dtype,
      )
  
file_path: colossalai/colossalai/legacy/zero/sharded_param/sharded_param.py
imports: from typing import List, Optional, Tuple
  import torch
  from colossalai.legacy.zero.gemini.stateful_tensor import StatefulTensor, TensorState
  from colossalai.legacy.zero.gemini.tensor_utils import colo_tensor_mem_usage
  from .sharded_tensor import ShardedTensor
label_desc: Use image node_id 3 for calling the ShardedParamV2 obj's underlying member method code with example usage: obj.set_data_none() without return types