import type { ContextValue, Context } from '@openobserve/browser-core';
import type { LifeCycle } from '../lifeCycle';
import type { RumConfiguration } from '../configuration';
import type { Hooks } from '../hooks';
export declare const FEATURE_FLAG_CONTEXT_TIME_OUT_DELAY: number;
export declare const BYTES_COMPUTATION_THROTTLING_DELAY = 200;
export type FeatureFlagContext = Context;
export interface FeatureFlagContexts {
    addFeatureFlagEvaluation: (key: string, value: ContextValue) => void;
}
/**
 * Start feature flag contexts
 *
 * Feature flag contexts follow the life of views.
 * A new context is added when a view is created and ended when the view is ended
 *
 * Note: we choose not to add a new context at each evaluation to save memory
 */
export declare function startFeatureFlagContexts(lifeCycle: LifeCycle, hooks: Hooks, configuration: RumConfiguration): FeatureFlagContexts;