code: def insertTextbox(page, rect, buffer,
                    fontname="helv",
                    fontfile=None,
                    set_simple=0,
                    encoding=0,
                    fontsize=11,
                    color=None,
                    fill=None,
                    expandtabs=1,
                    align=0,
                    rotate=0,
                    render_mode=0,
                    border_width=1,
                    morph=None,
                    overlay=True):
      
      img = page.newShape()
      rc = img.insertTextbox(rect, buffer,
                             fontsize=fontsize,
                             fontname=fontname,
                             fontfile=fontfile,
                             set_simple=set_simple,
                             encoding=encoding,
                             color=color,
                             fill=fill,
                             expandtabs=expandtabs,
                             render_mode=render_mode,
                             border_width=border_width,
                             align=align,
                             rotate=rotate,
                             morph=morph)
      if rc >= 0:
          img.commit(overlay)
      return rc
docs: Insert text into a given rectangle.
  
      Notes:
          Creates a Shape object, uses its same-named method and commits it.
      Parameters:
          rect: (rect-like) area to use for text.
          buffer: text to be inserted
          fontname: a Base-14 font, font name or '/name'
          fontfile: name of a font file
          fontsize: font size
          color: RGB color triple
          expandtabs: handles tabulators with string function
          align: left, center, right, justified
          rotate: 0, 90, 180, or 270 degrees
          morph: morph box with  a matrix and a pivotal point
          overlay: put text in foreground or background
      Returns:
          unused or deficit rectangle area (float)