def METHOD_NAME(self):
    if isinstance(self._value, Window):
        if self._value.startIdx is None:
            self.startIdx.set_text('')
        else:
            self.startIdx.set_text(self._value.startIdx.decompile())
        if self._value.endIdx is None:
            self.endIdx.set_text('')
        else:
            self.endIdx.set_text(self._value.endIdx.decompile())
        if self._value.timeAt0 is None:
            self.timeAt0.set_text('')
        else:
            self.timeAt0.set_text(self._value.timeAt0.decompile())
    else:
        self.startIdx.set_text('')
        self.endIdx.set_text('')
        self.timeAt0.set_text('')