code: func (v *TextBuffer) GetTagTable() (*TextTagTable, error) {
  	c := C.gtk_text_buffer_get_tag_table(v.native())
  	if c == nil {
  		return nil, nilPtrErr
  	}
  	obj := glib.Take(unsafe.Pointer(c))
  	return wrapTextTagTable(obj), nil
  }
docs: // GetTagTable() is a wrapper around gtk_text_buffer_get_tag_table().