import type { PollSpec } from '@fun-xyz/fiat-contract/types';
export interface SchedulePollHandlers {
    /**
     * Runs one poll. Resolving `false` stops the schedule — the caller decides,
     * because "did the flow move on" is a question about the envelope this module
     * deliberately does not read.
     */
    onPoll: () => boolean | Promise<boolean>;
    /** The deadline passed with the flow still on this state. */
    onGiveUp?: () => void;
    /** A poll failed, or the spec was unusable. A failed request does not stop the schedule. */
    onError?: (error: unknown) => void;
}
/**
 * Polls `spec` until the caller stops it, the deadline passes, or the returned
 * canceller is called. Always call the canceller on unmount.
 */
export declare function schedulePoll(spec: PollSpec, handlers: SchedulePollHandlers): () => void;
/**
 * Translates a `PollSpec` into `retry` options.
 *
 * The numbers pass through untouched. The contract bounds them — whole, inside
 * the platform timer range, `backoffFactor >= 1`, and `maxIntervalMs` required
 * alongside a factor and never below `intervalMs` — so sanitising here would
 * only hide an emission that is already invalid.
 */
export declare function attemptOptionsFor(spec: PollSpec): {
    delay: number;
    initialDelay: number;
    minDelay: number;
    maxDelay: number;
    factor: number;
    jitter: boolean;
    maxAttempts: number;
};
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