import * as tg from 'generic-type-guard';
import { AvatarSizes, DataFormatTypes, DataPoint, ExpandType, GenericDataRow, Request, RequestHeaders, RequestMethods, ResponseType } from 'src/models';
/**
 * Custom Type Guards
 *
 * @private
 * */
export declare const isUndefined: tg.TypeGuard<undefined>;
export declare const isString: tg.TypeGuard<string>;
export declare const isNumber: tg.TypeGuard<number>;
export declare const isArray: tg.TypeGuard<unknown[]>;
export declare function isFunction(arg: unknown): arg is Function;
export declare const isBoolean: tg.TypeGuard<boolean>;
export declare function isFile(arg: unknown): arg is File;
export declare function isFormData(arg: unknown): arg is FormData;
export declare function isDate(arg: unknown): arg is Date;
export declare function isInEnum<T extends string>(arg: unknown, enumObj: {
    [key in T]: string;
}): boolean;
export declare function isRequestMethods(arg: unknown): arg is RequestMethods;
export declare function isDataFormatTypes(arg: unknown): arg is DataFormatTypes;
export declare function isAvatarSizes(arg: unknown): arg is AvatarSizes;
export declare const isRequestHeaders: tg.TypeGuard<RequestHeaders>;
export declare const isPromise: tg.TypeGuard<Promise<any>>;
export declare const isRequest: tg.TypeGuard<Request>;
export declare const isDataPoint: tg.TypeGuard<DataPoint>;
export declare const isGenericDataRow: tg.TypeGuard<GenericDataRow>;
export declare const isGenericDataRowArray: tg.TypeGuard<GenericDataRow[]>;
export declare function isExpandType(arg: unknown): arg is ExpandType;
export declare function isResponseType(arg: unknown): arg is ResponseType;
export declare const isExpandTypeArray: tg.TypeGuard<ExpandType[]>;