code: def get_minmax(self, eval_result):
      data = list(map(float, open(eval_result).readlines()[1:]))
      return min(data), max(data)
  
imports: import os
  import pytest
  import re
  import yatest.common
  from lib import data_file, get_limited_precision_dsv_diff_tool
label_desc: Use image node_id 6 for calling the TestModeNormalizeModel obj's underlying member method code with example usage: obj.get_minmax(eval_result) and returns: min,  max