import type { Accessor } from "solid-js";
/**
 * Tracks whether a streaming response has stalled (no new tokens for a while)
 * and produces a smooth 0→1 intensity value suitable for color interpolation
 * (e.g. fading the spinner glyph toward red).
 *
 * Driven by an external clock signal rather than its own interval, so it
 * automatically slows down when the terminal is backgrounded (no ticks = no
 * updates) and doesn't create a second timer alongside the animation clock.
 *
 * ```ts
 * const time = useClock(50);
 * const stalled = useStalled(time, () => responseLength());
 * // stalled.isStalled()  — boolean
 * // stalled.intensity()  — 0..1
 * ```
 */
export type StalledState = {
    isStalled: Accessor<boolean>;
    intensity: Accessor<number>;
};
export declare function useStalled(time: Accessor<number>, getLength: Accessor<number>, opts?: {
    delayMs?: number;
    rampMs?: number;
}): StalledState;
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