import { AgridCore } from '../agrid-core';
import type { JsonType, AgridCoreOptions, AgridFetchOptions, AgridFetchResponse, AgridFlagsResponse } from '../types';
export interface AgridCoreTestClientMocks {
    fetch: jest.Mock<Promise<AgridFetchResponse>, [string, AgridFetchOptions]>;
    storage: {
        getItem: jest.Mock<any | undefined, [string]>;
        setItem: jest.Mock<void, [string, any | null]>;
    };
}
export declare class AgridCoreTestClient extends AgridCore {
    private mocks;
    _cachedDistinctId?: string;
    constructor(mocks: AgridCoreTestClientMocks, apiKey: string, options?: AgridCoreOptions);
    getFlags(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>, extraPayload?: Record<string, any>): Promise<AgridFlagsResponse | undefined>;
    getPersistedProperty<T>(key: string): T;
    setPersistedProperty<T>(key: string, value: T | null): void;
    fetch(url: string, options: AgridFetchOptions): Promise<AgridFetchResponse>;
    getLibraryId(): string;
    getLibraryVersion(): string;
    getCustomUserAgent(): string;
}
export declare const createTestClient: (apiKey: string, options?: AgridCoreOptions, setupMocks?: (mocks: AgridCoreTestClientMocks) => void, storageCache?: {
    [key: string]: string | JsonType;
}) => [AgridCoreTestClient, AgridCoreTestClientMocks];
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