export type GraphModelMigrationPatchDescriptorFields = {
    readonly patchId: string;
    readonly writerId: string;
    readonly writerSequence: number;
};
/** Runtime-backed source patch descriptor for graph-model migration planning. */
export default class GraphModelMigrationPatchDescriptor {
    readonly patchId: string;
    readonly writerId: string;
    readonly writerSequence: number;
    constructor(fields: GraphModelMigrationPatchDescriptorFields);
    /** Returns the per-writer sequence uniqueness key. */
    writerSequenceKey(): string;
}
