/**
 * info about any opaque data params in formData
 */
export interface IOpaqueDataInfo {
    [param: string]: {
        multi: boolean;
    };
}
/**
 * creates FormData object from given data; stringifies ant non string params; handles files according to OpaqueDataInfo
 * @param data
 * @param opaqueDataInfo
 */
export declare function getFormData(data: {
    [param: string]: any;
}, opaqueDataInfo?: IOpaqueDataInfo): any;
/**
 * returns URLSearchParams string computed from given params;
 * TODO support multiple value
 * @param params
 * @param init
 */
export declare function getSearchParams(params: {
    [param: string]: any;
}, init?: string): any;
/**
 * returns authorized headers if accessToken present in Context;
 * @param vc
 * @param headers
 */
export declare function getHeaders(vc: {
    accessToken?: string;
}, headers?: {
    [header: string]: string;
}): {
    [header: string]: string;
};