code: def to_html(self, classes=None, notebook=False, border=None):
          
          from pandas.io.formats.html import HTMLFormatter, NotebookFormatter
          Klass = NotebookFormatter if notebook else HTMLFormatter
          html = Klass(self, classes=classes, border=border).render()
          if hasattr(self.buf, 'write'):
              buffer_put_lines(self.buf, html)
          elif isinstance(self.buf, str):
              with open(self.buf, 'w') as f:
                  buffer_put_lines(f, html)
          else:
              raise TypeError('buf is not a file name and it has no write '
                              ' method')
docs: Render a DataFrame to a html table.
  
          Parameters
          ----------
          classes : str or list-like
              classes to include in the `class` attribute of the opening
              ``<table>`` tag, in addition to the default "dataframe".
          notebook : {True, False}, optional, default False
              Whether the generated HTML is for IPython Notebook.
          border : int
              A ``border=border`` attribute is included in the opening
              ``<table>`` tag. Default ``pd.options.html.border``.
  
              .. versionadded:: 0.19.0