import { OpenFeatureEventEmitter, type EvaluationContext, type JsonValue, type Logger, type Provider, type ResolutionDetails } from '@openfeature/web-sdk';
/**
 * A proxy provider that provides a read-only view of an underlying provider.
 *
 * This is useful for plugins that want to use the same provider as Grafana without being able to modify its state or context.
 */
export declare class ProxyProvider implements Provider {
    readonly runsOn = "client";
    readonly events: OpenFeatureEventEmitter;
    private readonly provider;
    private readonly cleanup;
    constructor(provider: Provider);
    get metadata(): {
        name: string;
    };
    resolveBooleanEvaluation(flagKey: string, defaultValue: boolean, context: EvaluationContext, logger: Logger): ResolutionDetails<boolean>;
    resolveStringEvaluation(flagKey: string, defaultValue: string, context: EvaluationContext, logger: Logger): ResolutionDetails<string>;
    resolveNumberEvaluation(flagKey: string, defaultValue: number, context: EvaluationContext, logger: Logger): ResolutionDetails<number>;
    resolveObjectEvaluation<T extends JsonValue>(flagKey: string, defaultValue: T, context: EvaluationContext, logger: Logger): ResolutionDetails<T>;
    onClose(): Promise<void>;
    private registerEventForwarding;
    private unregisterEventForwarding;
}