code: def df():
      return DataFrame(
          {
              "A": [0, 1],
              "B": [-0.61, -1.22],
              "C": Series(["ab", "cd"], dtype=object),
          }
      )
  
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 1 for calling a global function with example usage: df() and returns: DataFrame