export function attachHTTPHeaders({ config, appKey, Authorization }: {
    config: any;
    appKey: any;
    Authorization: any;
}): any;
export function getAppKeyAndId(): {
    appKey: any;
    appInstanceId: string;
} | undefined;
export function getAuthorizationToken(): string | null;
export function getAuthorizationHeaders(): {
    Authorization: string;
} | {
    Authorization?: undefined;
};
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