code: def extra_repr(self) -> str:
      return "in_features={}, out_features={}, bias={}, bits={}, group_size={}".format(
          self.in_features,
          self.out_features,
          self.bias is not None,
          self.bits,
          self.group_size,
      )
  
file_path: BigDL/python/llm/src/bigdl/llm/transformers/awq/linear.py
imports: import torch
  import torch.nn
  from bigdl.llm.utils.common import invalidOperationError, invalidInputError
  from transformers import AwqConfig
  from transformers.utils.quantization_config import AwqBackendPackingMethod
label_desc: Use image node_id 4 for calling the WQLinear_GEMM obj's underlying member method code with example usage: obj.extra_repr() and returns: str