code: func TextBufferNew(table *TextTagTable) (*TextBuffer, error) {
  	c := C.gtk_text_buffer_new(table.native())
  	if c == nil {
  		return nil, nilPtrErr
  	}
  
  	e := wrapTextBuffer(glib.Take(unsafe.Pointer(c)))
  	return e, nil
  }
docs: // TextBufferNew() is a wrapper around gtk_text_buffer_new().