code: def _apply_fit(self, font_family, font_size, is_bold, is_italic):
          
          self.auto_size = MSO_AUTO_SIZE.NONE
          self.word_wrap = True
          self._set_font(font_family, font_size, is_bold, is_italic)
docs: Arrange all the text in this text frame to fit inside its extents by
          setting auto size off, wrap on, and setting the font of all its text
          to *font_family*, *font_size*, *is_bold*, and *is_italic*.