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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _hide(self):
 """Hide the tray icon."""

        self._icon.set_visible(False)
        self._icon.disconnect(self._conn_left)
        self._icon.disconnect(self._conn_right)
        self._conn_left = None
        self._conn_right = None