code: def read_converge_file(file_in, iter=False):
      data = read_raw_file(file_in, iter)
      return (
          (data[0], raw_to_converge(*data[1:]))
          if iter
          else raw_to_converge(*data)
      )
  
imports: from mystic.tools import list_or_tuple_or_ndarray
  from mystic.tools import isNull
  import sys
label_desc: Use image node_id 16 for calling a global function with example usage: read_converge_file(file_in, iter) and returns: unknown