import { InjectionToken } from '@angular/core';
export type DeterministicRandom = () => number;
export type DeterministicEnvOptions = {
    now?: Date | number | string;
    seed?: number | string;
};
export declare const DETERMINISTIC_NOW: InjectionToken<number>;
export declare const DETERMINISTIC_RANDOM: InjectionToken<DeterministicRandom>;
export declare const DETERMINISTIC_SEED: InjectionToken<string>;
export declare const createDeterministicRandom: (seed?: number | string) => () => number;
export declare const provideDeterministicEnv: (options?: DeterministicEnvOptions) => ({
    provide: InjectionToken<string>;
    useValue: string;
    deps?: undefined;
    useFactory?: undefined;
} | {
    provide: InjectionToken<number>;
    useValue: number;
    deps?: undefined;
    useFactory?: undefined;
} | {
    deps: InjectionToken<string>[];
    provide: InjectionToken<DeterministicRandom>;
    useFactory: (seed?: number | string) => () => number;
    useValue?: undefined;
})[];