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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 open(self):
 """Open and potentially connect to a device."""


        self.hwman = HardwareManager(port=self._port)
        self.opened = True

        if self._connection_string is not None:
            try:
                self.hwman.connect_direct(self._connection_string)
            except HardwareError:
                self.hwman.close()
                raise

        elif self._connect_id is not None:
            try:
                self.hwman.connect(self._connect_id)
            except HardwareError:
                self.hwman.close()
                raise