class_docstr: This is a wrapper around the torch.nn.LayerNorm. It is meant to be used only with the from_native_module interface.
code: def __init__(self) -> None:
      raise NotImplementedError(
          "LayerNorm is not implemented as a physical class. "
          "It is meant to be used only with the from_native_module interface to convert a native pytorch layer norm module to colossalai layer norm module."
      )
  
imports: import warnings
  from abc import ABC, abstractmethod
  import torch.nn
  from colossalai.lazy import LazyInitContext
  from ._operation import hook_paramter_in_backward
  from .utils import SeqParallelUtils
label_desc: Use image node_id 1 to create a new LayerNorm object from inherited base classes: BaseLayerNorm with example: obj = LayerNorm()