/**
 * Storage key builders for buffered workflow signals and their accepted-response
 * records.
 *
 * These are spread into `KEYS` in `interface.ts` rather than declared there, so
 * the signal keyspace can carry its full rationale without pushing that file's
 * documented line ceiling. Callers still reach them through `KEYS`, which keeps
 * one import contract for storage keys.
 *
 * @module storage/signal-keys
 */
/**
 * Buffered workflow signal keys plus their accepted-response records.
 *
 * Spread into `KEYS`; not intended to be imported directly by engine code.
 */
export declare const SIGNAL_KEYS: {
    readonly signal: (workflowId: string, name: string, id: string) => string;
    readonly startSignal: (workflowId: string, name: string, id: string) => string;
    readonly signalSequence: (workflowId: string) => string;
    readonly signalAcceptedResponsePrefix: (workflowId: string) => string;
    readonly signalAcceptedResponse: (workflowId: string, name: string, signalId: string) => string;
};