interface PolkadotParachainPrimitivesXcmpMessageFormat extends Enum {
    readonly isConcatenatedVersionedXcm: boolean;
    readonly isConcatenatedEncodedBlob: boolean;
    readonly isSignals: boolean;
    readonly type: 'ConcatenatedVersionedXcm' | 'ConcatenatedEncodedBlob' | 'Signals';