export declare const ATTESTATION_PREDICATE_PREFIX = "yarramate/attestation/";
export declare const attestationClaimValue: (attestation: {
    readonly by: string;
    readonly on: string;
    readonly recordedBy?: string;
}) => string;
export interface AttestationClaimParts {
    readonly by: string;
    readonly on: string;
    readonly recordedBy?: string;
}
export declare const parseAttestationClaimValue: (value: string) => AttestationClaimParts | undefined;
export interface ConstraintExpectsParts {
    readonly provider: string;
    readonly key: string;
    readonly value: string;
}
export declare const parseConstraintExpectsValue: (value: string) => ConstraintExpectsParts | undefined;