export interface SemanticFactRevisionInput {
    key: string;
    kind: string;
    source_ref: string;
    sha256: string;
}
export declare function indexSemanticFactRevisionInputs(inputs: readonly Record<string, unknown>[]): Map<string, SemanticFactRevisionInput[]>;
export declare function semanticFactRevisionDigest(fact: Record<string, unknown>, inputRevisionsByFact: ReadonlyMap<string, readonly SemanticFactRevisionInput[]>): string;
export declare function semanticObligationRevisionDigest(obligation: Record<string, unknown>, factRevisionDigest: string): string;
export declare function legacySemanticFactRevisionDigest(fact: Record<string, unknown>): string;
export declare function legacySemanticObligationRevisionDigest(obligation: Record<string, unknown>): string;