import type ServiceScope from '../ServiceScope';
import type { IServiceKey } from '../IServiceKey';
/**
 * This is a {@link ServiceScope} contract for generating pseudorandom random numbers.
 *
 * @remarks
 * This interface abstracts the functionality of the system Math.random() API
 * for usage with a {@link ServiceScope}.  For example, a unit test might replace
 * the default {@link RandomNumberGenerator} service with a mock implementation
 * that always returns the same sequence of random numbers, in order to ensure that
 * test failures are always repeatable.
 *
 * @public
 */
export interface IRandomNumberGenerator {
    /**
     * Returns a pseudorandom number between 0 (inclusive) and 1 (exclusive),
     * following the contract of Math.random().
     */
    generate(): number;
}
/**
 * This is the default implementation of {@link IRandomNumberGenerator} that simply
 * calls Math.random().
 *
 * @public
 */
export default class RandomNumberGenerator implements IRandomNumberGenerator {
    /**
     * The service key for IRandomNumberGenerator.
     */
    static readonly serviceKey: IServiceKey<IRandomNumberGenerator>;
    constructor(serviceScope: ServiceScope);
    /** {@inheritDoc IRandomNumberGenerator.generate} */
    generate(): number;
}
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