Type Alias: AckCorrelationCode

AckCorrelationCode = "MLLP_ACK_UNMATCHED_CONTROL_ID" | "MLLP_ACK_AFTER_TIMEOUT"

The two warning codes emitted by ACK correlation rather than by framing.

A subset of the framing WarningCode union; named separately so the registry below is exhaustive over exactly the codes it owns and a new correlation code cannot be added without a message for it.