AppShape script identifier. 0 BIT is for CLIENT_ACCEPTED, 1 BIT is for CLIENT_DATA, 2 BIT is for CLIENT_CLOSED, 3 BIT is for SERVER_CONNECTED, 4 BIT is for SERVER_DATA, 5 BIT is for SERVER_CLOSED, 6 BIT is for HTTP_REQUEST, 7 BIT is for HTTP_REQUEST_DATA, 8 BIT is for HTTP_CRULE_MATCH, 9 BIT is for HTTP_CRULE_NOMATCH, 10 BIT is for HTTP_RESPONSE, 11 BIT is for HTTP_CACHE_RESPONSE, 12 BIT is for HTTP_RESPONSE_CONTINUE, 13 BIT is for HTTP_RESPONSE_DATA, 14 BIT is for SIP_REQUEST, 15 BIT is for SIP_RESPONSE, 16 BIT is for PERSIST_DOWN, 17 BIT is for LB_SELECTED, 18 BIT is for LB_FAILED, 19 BIT is for NAME_RESOLVED, 20 BIT is for SESSION_CLOSE. If the bit is SET than the event has occurred.