code: def add_paragraph(self, text='', style=None):
          
          return super(_Cell, self).add_paragraph(text, style)
docs: Return a paragraph newly added to the end of the content in this
          cell. If present, *text* is added to the paragraph in a single run.
          If specified, the paragraph style *style* is applied. If *style* is
          not specified or is |None|, the result is as though the 'Normal'
          style was applied. Note that the formatting of text in a cell can be
          influenced by the table style. *text* can contain tab (``\\t``)
          characters, which are converted to the appropriate XML form for
          a tab. *text* can also include newline (``\\n``) or carriage return
          (``\\r``) characters, each of which is converted to a line break.