ProtocolDetectionResult < T > function ( ) { return INVALID ; }
returns a protocoldetectionresult that signals the data was invalid for the protocol . concode_field_sep T result concode_elem_sep ProtocolDetectionResult NEEDS_MORE_DATE concode_elem_sep ProtocolDetectionResult INVALID concode_elem_sep ProtocolDetectionState state concode_field_sep T detectedProtocol concode_elem_sep ProtocolDetectionResult<T> detected concode_elem_sep ProtocolDetectionState state concode_elem_sep ProtocolDetectionResult<T> needsMoreData