import { TemporalUnit } from './temporal-unit';
import { AtLeast } from './perseverers/at-least';
import { TemporalBinding } from './perseverers/temporal-binding';
export declare class Persevere {
    /**
     * Configure to persevere for at most the given amount of time.
     *
     * @param value the numeric value to wait
     * @param unit the temporal unit that the value denotes
     * @return TemporalBinding a temporally bound class ready for further configuration
     */
    atMost(value: number, unit: TemporalUnit): TemporalBinding;
    /**
     * Configure to persevere for at least the given amount of time, must also be configured with an upper bound through a subsequent call to `.andAtMost()`.
     *
     * @param value the numeric value to wait
     * @param unit the temporal unit that the value denotes
     * @return TemporalBinding a temporally bound class ready for further configuration
     */
    atLeast(value: number, unit: TemporalUnit): AtLeast;
}