@Override
    public String getAcknowledgmentType() {
        return "AE";
    }
@Test
    public void testGetAcknowledgmentType() {
        instance = new MllpApplicationErrorAcknowledgementException(HL7_MESSAGE_BYTES, HL7_ACKNOWLEDGEMENT_BYTES, LOG_PHI_TRUE);

        assertEquals("AE", instance.getAcknowledgmentType());
    }