export type GraphModelMigrationPatchFrontierEvidenceFields = {
    readonly frontierKey: string;
    readonly parentPatchIds: readonly string[];
};
/** Runtime-backed patch frontier evidence for later migration equivalence checks. */
export default class GraphModelMigrationPatchFrontierEvidence {
    readonly frontierKey: string;
    readonly parentPatchIds: readonly string[];
    constructor(fields: GraphModelMigrationPatchFrontierEvidenceFields);
}
