interface Internal {
    seedValue: number | null;
    mersenne: {
        rand(max: number, min: number): number;
        seed(seed: number): void;
        unseed(): void;
    };
}
declare const INTERNAL: unique symbol;
export declare class FakerCore implements Faker.Core {
    [INTERNAL]: Internal;
    extend<K extends keyof Faker.Extensions>(extensions: Partial<Record<K, Faker.ExtensionFactory<K>>>): this;
    seed(value: number): this;
    unseed(): this;
    number(maxOrMin?: number, customMax?: number, precision?: number): number;
    oneOf<T>(firstOrAll: T | Faker.Generator<T> | (T | Faker.Generator<T>)[], ...values: (T | Faker.Generator<T>)[]): T;
    string(length?: number): string;
    boolean(): boolean;
}
export {};