export interface TimerState {
    duration: number;
    start: number;
    now: number;
}
export declare const initialState: TimerState;
export declare const name: "timer", reducer: import("redux").Reducer<TimerState>;
export declare const durationChanged: import("@reduxjs/toolkit").ActionCreatorWithPayload<number, "timer/durationChanged">, timerReset: import("@reduxjs/toolkit").ActionCreatorWithPreparedPayload<[], number, "timer/timerReset", never, never>, nowChanged: import("@reduxjs/toolkit").ActionCreatorWithPayload<number, "timer/nowChanged">;
export declare const selectDuration: import("reselect").Selector<{
    timer: TimerState;
}, number, []> & {
    unwrapped: (state: TimerState) => number;
}, selectElapsedMs: import("reselect").Selector<{
    timer: TimerState;
}, number, []> & {
    unwrapped: ({ now, start, duration }: TimerState) => number;
};
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