def indentBlock(block):
            cursor = cursorAtSpaceEnd(block)
            cursor.insertText(' ' if withSpace else self.text())
def _on_size_spin_button_value_changed(self, size_spin_button):
    if self._locker.is_unlocked("emit_size_spin_button_value_changed"):
      self._locker.lock("update_spin_button")