Type Alias: AnyAstmWarningCode

AnyAstmWarningCode = WarningCode | FrameWarningCode | LtpWarningCode

Any warning code from any of the three registries - the record layer (ASTM_RECORD_* / ASTM_NONSTANDARD_DELIMITERS / ASTM_UNKNOWN_ESCAPE_SEQUENCE), the frame codec (ASTM_FRAME_*), or the LTP protocol layer (ASTM_LTP_*). A QuirkTolerance may name any of them, but the safety gate refuses all but the small, benign, record-layer subset - so the union exists mainly to let the gate reject a frame/LTP code with a precise, typed message.