code: def dequantize(g: jit_utils.GraphContext, input):
      return g.op("_caffe2::Int8Dequantize", input)
  
imports: import importlib
  import inspect
  from torch.onnx import symbolic_helper, symbolic_opset9
  from torch.onnx._internal import jit_utils, registration
label_desc: Use image node_id 13 for calling a global function with example usage: dequantize(g, input) and returns: g