/** Realm-neutral, bounded output. Targets come only from the frozen input scan. */
export interface GamepadFeedbackTarget {
    readonly attachment: number;
    readonly index: number;
    readonly generation: number;
}
export interface GamepadRumble {
    readonly durationMs: number;
    readonly strongMagnitude: number;
    readonly weakMagnitude: number;
}
export type GamepadFeedbackIntent = {
    readonly id: number;
    readonly target: GamepadFeedbackTarget;
} & ({
    readonly kind: 'play';
    readonly effect: GamepadRumble;
} | {
    readonly kind: 'stop';
});
export type GamepadFeedbackStatus = 'complete' | 'preempted' | 'invalid' | 'unsupported' | 'disconnected' | 'stale' | 'hidden' | 'busy' | 'rejected' | 'timeout' | 'disposed' | 'result-overflow';
export interface GamepadFeedbackResult {
    readonly id: number;
    readonly status: GamepadFeedbackStatus;
    /** POD native rejection name/message, never the native exception. */
    readonly detail?: string;
}
export declare const GAMEPAD_FEEDBACK_KEY: "GamepadFeedback";
export declare const GAMEPAD_FEEDBACK_CAPACITY = 32;
export declare const GAMEPAD_FEEDBACK_MAX_DURATION_MS = 10000;
export declare function validGamepadRumble(effect: GamepadRumble): boolean;
export type GamepadFeedbackAdmission = {
    readonly ok: true;
    readonly id: number;
} | {
    readonly ok: false;
    readonly reason: 'invalid' | 'capacity' | 'disposed';
};
export interface GamepadFeedback {
    play(target: GamepadFeedbackTarget, effect: GamepadRumble): GamepadFeedbackAdmission;
    stop(target: GamepadFeedbackTarget): GamepadFeedbackAdmission;
    /** Poll terminal results in arrival order. Polling releases their capacity. */
    readResults(): readonly GamepadFeedbackResult[];
    /** Transport seams: both arrays contain POD only. */
    drainIntents(): readonly GamepadFeedbackIntent[];
    acceptResults(results: readonly GamepadFeedbackResult[], lost?: number): void;
    dispose(): void;
}
export declare function createGamepadFeedback(): GamepadFeedback;
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