import type { BaseStrategy } from '@tanstack/react-db';
/** Options for the coalesce pace strategy. */
export interface CoalesceStrategyOptions {
    /**
     * Optional cooldown gap in milliseconds, measured from the in-flight request's
     * completion before the coalesced backlog fires. Defaults to `0` (fire the
     * instant the in-flight request resolves). Never delays the leading-edge first
     * call.
     */
    wait?: number;
}
/**
 * Single-flight pace strategy with trailing coalescence.
 *
 * The first call fires immediately (leading edge). While that request is in
 * flight, every further call is coalesced into a single pending backlog. On the
 * in-flight request's success the merged backlog fires as one request, after an
 * optional `wait` cooldown gap. On failure the in-flight gate clears and the
 * backlog is retained — the next call fires it leading-edge. The strategy itself
 * never retries or backs off.
 *
 * Paced by request completion, not by a clock — unlike `debounceStrategy` /
 * `throttleStrategy`. Conforms to TanStack DB's `BaseStrategy`, so it drops into
 * any `createPacedMutations`.
 */
export declare const coalesceStrategy: (options?: CoalesceStrategyOptions) => BaseStrategy<'coalesce'>;
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