import type { FlagMetadata, ResolutionDetails } from '@openfeature/core';
import { ErrorCode } from '@openfeature/core';
import type { BulkEvaluationRefetchMetadata, EvaluationFailureResponse, EvaluationFlagValue, EvaluationRequest, EvaluationSuccessResponse, OFREPApiBulkEvaluationResult, OFREPApiEvaluationResult, OFREPEvaluationErrorHttpStatus, OFREPEvaluationSuccessHttpStatus } from '../model';
import type { OFREPProviderBaseOptions } from '../provider';
export type FetchAPI = WindowOrWorkerGlobalScope['fetch'];
export declare const ErrorMessageMap: {
    [key in ErrorCode]: string;
};
export declare class OFREPApi {
    private baseOptions;
    private fetchImplementation;
    private static readonly jsonRegex;
    private _shutdownController;
    constructor(baseOptions: OFREPProviderBaseOptions, fetchImplementation?: FetchAPI);
    private isJsonMime;
    static isOFREFErrorHttpStatus(status: number): status is OFREPEvaluationErrorHttpStatus;
    static isOFREFSuccessHttpStatus(status: number): status is OFREPEvaluationSuccessHttpStatus;
    /**
     * Aborts any in-flight requests and releases resources.
     * After calling this method, the OFREPApi instance should not be used.
     */
    close(): void;
    private doFetchRequest;
    postEvaluateFlag(flagKey: string, evaluationRequest?: EvaluationRequest): Promise<OFREPApiEvaluationResult>;
    postBulkEvaluateFlags(requestBody?: EvaluationRequest, etag?: string | null, sseMetadata?: BulkEvaluationRefetchMetadata): Promise<OFREPApiBulkEvaluationResult>;
}
export declare function handleEvaluationError<T>(resultOrError: EvaluationFailureResponse | Error, defaultValue: T, callback?: (resultOrError: EvaluationFailureResponse | Error) => void): ResolutionDetails<T>;
export declare function toResolutionDetails<T extends EvaluationFlagValue>(result: EvaluationSuccessResponse, defaultValue: T): ResolutionDetails<T>;
export declare function toFlagMetadata(metadata?: object): FlagMetadata | undefined;