export declare type FlagsConfig = {
    appName: string;
    instanceId: string;
    host?: string;
    url?: string;
    uri?: string;
    extraHttpHeaders?: {
        [key: string]: string;
    };
};
export declare type FlagValue = {
    description: string;
    enabled: boolean;
    name: string;
    strategies: {
        name: string;
        parameters: {
            [key: string]: string | number | boolean;
        };
    }[];
};
declare class FlagsClient {
    config: FlagsConfig;
    private flags;
    constructor(config: FlagsConfig);
    init(): Promise<void>;
    getFlags(): FlagValue[];
    getFlag(flagName: string): FlagValue | undefined;
    private fetchFlags;
    private checkValidInstance;
}
export default FlagsClient;