uamqp/async_ops/client_async.py [513:521]:
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            return False
        if self.message_handler.get_state() == constants.MessageSenderState.Error:
            raise errors.MessageHandlerError(
                "Message Sender Client is in an error state. "
                "Please confirm credentials and access permissions."
                "\nSee debug trace for more details.")
        if self.message_handler.get_state() != constants.MessageSenderState.Open:
            return False
        return True
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uamqp/client.py [538:546]:
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            return False
        if self.message_handler.get_state() == constants.MessageSenderState.Error:
            raise errors.MessageHandlerError(
                "Message Sender Client is in an error state. "
                "Please confirm credentials and access permissions."
                "\nSee debug trace for more details.")
        if self.message_handler.get_state() != constants.MessageSenderState.Open:
            return False
        return True
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