export declare const isArray: (value: any) => value is any[];
export declare const isObject: (value: any) => boolean;
export declare const is: (val: unknown, type: string) => boolean;
export declare const isFunction: (val: any) => val is Function;
export declare const isDate: (val: any) => val is Date;
export declare const isNumber: (val: any) => val is number;
export declare const isInt: (val: any) => val is number;
export declare const isFloat: (val: any) => val is number;
export declare const isAsyncFunction: (val: unknown) => val is (...args: any[]) => Promise<any>;
export declare const isPromise: (value: any) => value is Promise<any>;
export declare const isString: (val: unknown) => val is string;
export declare const isBoolean: (val: unknown) => val is boolean;
export declare const isPC: () => boolean;
export declare const isWindow: (val: any) => val is Window;
export declare const isElement: (val: unknown) => val is Element;
export declare const isNull: (val: unknown) => val is null;
export declare const isHexColor: (str: string) => boolean;
export declare const isIOS: () => boolean;
export declare const isValidEmail: (email: string) => boolean;
export declare const isDef: <T>(val: T | undefined) => val is T;
export declare const isUnDef: <T>(val: T | undefined) => val is undefined;
export declare const isNullOrUnDef: <T>(val: T | null | undefined) => val is null | undefined;
export declare const isSymbol: (value: any) => value is symbol;
export declare const isPrimitive: (value: any) => boolean;
export declare const isBasicType: (val: any) => val is string | number | boolean | symbol | bigint | null | undefined;
export declare const isEmpty: (value: any) => boolean;
export declare function isEmptySv(value: string | object | null | undefined): boolean;
export declare const isEqual: <T>(x: T, y: T) => boolean;