code: def read_code(code_filename, params):
      with open(code_filename, "r") as f:
          code = f.read()
      for k, v in params.items():
          code = "#define " + k + " " + str(v) + "\n" + code
      return code
  
label_desc: Use image node_id 1 for calling a global function with example usage: read_code(code_filename, params) and returns: code