code: def test_set_range(self):
      report = BarChart(
          self.data,
          self.cols,
          model_name=self.model_name,
          dataset_name=self.dataset_name,
      )
      report.set_range("f1", 0.1, 0.3)
      for col in report.columns:
          if col.title == "f1":
              self.assertEqual((col.min_val, col.max_val), (0.1, 0.3))
  
file_path: textflint/test/report/report_generator/test_report_generator.py
imports: import unittest
  import pandas
  from textflint.report.analyzer.analyzer import *
  from textflint.report.report_generator.report_generator import BarChart, ReportGenerator
label_desc: Use image node_id 6 for calling the TestBarChart obj's underlying member method code with example usage: obj.test_set_range() without return types