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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 check_for_errors(self):
 """Check Connection for errors. :raises AMQPConnectionError: Raises if the connection encountered an error. :return: """

        if not self.exceptions:
            if not self.is_closed:
                return
            why = AMQPConnectionError('connection was closed')
            self.exceptions.append(why)
        self.set_state(self.CLOSED)
        self.close()
        raise self.exceptions[0]