code: def copy_para(x, fp16):
      y = util.copy_para(x)
      return y.half() if fp16 else y.float()
  
imports: import math
  import uuid
  from typing import Dict, Optional, List
  import torch
  from torch import Tensor, nn
  from torch.nn import Parameter, LayerNorm, Dropout
  from lightseq.training.ops.pytorch import util
  from lightseq.training.ops.pytorch.layer_base import TransformerEmbeddingLayerBase, TransformerEncoderLayerBase, TransformerDecoderLayerBase
  from .quantization import QuantLinear, TensorQuantizer, act_quant_config, weight_quant_config, out_quant_config, emb_quant_config
label_desc: Use image node_id 1 for calling a global function with example usage: copy_para(x, fp16) and returns: unknown