code: def test_longtable_caption_label(
      styler, caption, cap_exp, label, lab_exp
  ):
      cap_exp1 = f"\\caption{cap_exp[1]}{cap_exp[0]}"
      cap_exp2 = f"\\caption[]{cap_exp[0]}"
  
      expected = dedent(
          f"""\
          {cap_exp1}{lab_exp} \\\\
           & A & B & C \\\\
          \\endfirsthead
          {cap_exp2} \\\\
          """
      )
      assert expected in styler.to_latex(
          environment="longtable", caption=caption, label=label
      )
  
imports: from textwrap import dedent
  import numpy
  import pytest
  from pandas import DataFrame, MultiIndex, Series, option_context
  from pandas.io.formats.style import Styler
  from pandas.io.formats.style_render import _parse_latex_cell_styles, _parse_latex_css_conversion, _parse_latex_header_span, _parse_latex_table_styles, _parse_latex_table_wrapping
label_desc: Use image node_id 39 for calling a global function with example usage: test_longtable_caption_label(styler, caption, cap_exp, label, lab_exp) without return types