code: def test_report_ci(confidence_interval, capsys):
      """Verify that the CI report is printed when using report_ci."""
      report_ci(confidence_interval)
      captured = capsys.readouterr()
  
      assert len(captured.out) > 250
  
      for par in confidence_interval.keys():
          assert par in captured.out
  
      for interval in ["99.73", "95.45", "68.27", "_BEST_"]:
          assert interval in captured.out
  
imports: import numpy
  import pytest
  import lmfit
  from lmfit import Minimizer, Parameters, ci_report, conf_interval, fit_report, report_ci, report_fit
  from lmfit.lineshapes import gaussian
  from lmfit.models import GaussianModel
  from lmfit.printfuncs import alphanumeric_sort, correl_table, fitreport_html_table, getfloat_attr, gformat
label_desc: Use image node_id 25 for calling a global function with example usage: test_report_ci(confidence_interval, capsys) without return types