import { type VariationValue, type VariationValueWithDebug } from './types';
import type { Emitter } from 'mitt';
export declare function getVariation(identifier: string, defaultValue: any, storage: Record<string, any>, metricsHandler: (flag: string, value: any) => void, eventBus: Emitter, withDebug?: boolean): VariationValue | VariationValueWithDebug;