code: def sources_files(self):
      ret = [
          self.csrc_abs_path(fname)
          for fname in [
              "smoothquant/binding.cpp",
              "smoothquant/linear.cu",
          ]
      ]
      return ret
  
file_path: ColossalAI/op_builder/smoothquant.py
imports: import torch
  from .builder import Builder
  from .utils import append_nvcc_threads
label_desc: Use image node_id 3 for calling the SmoothquantBuilder obj's underlying member method code with example usage: obj.sources_files() and returns: ret