import type { Component, ComponentPublicInstance, VNode, VNodeTypes } from 'vue';
export declare const toTypeString: (v: any) => string;
export declare const isDef: <T = any>(val?: T | undefined) => val is T;
export declare const isBoolean: (val: any) => val is boolean;
export declare const isFunction: <T extends Function>(val: any) => val is T;
export declare const isNumber: (val: any) => val is number;
export declare const isString: (val: unknown) => val is string;
export declare const isObject: (val: unknown) => val is Record<any, any>;
export declare const isPlainObject: (val: unknown) => val is object;
export declare const isArray: (arg: any) => arg is any[];
export declare const isMap: (val: unknown) => val is Map<any, any>;
export declare const isSet: (val: unknown) => val is Set<any>;
export declare const isDate: (val: unknown) => val is Date;
export declare const isRegExp: (val: unknown) => val is RegExp;
export declare const isSymbol: (val: unknown) => val is symbol;
export declare const isPromise: <T = any>(val: unknown) => val is Promise<T>;
export declare const isValue: (val: any) => val is boolean;
export declare const isComponentInstance: (val: any) => val is ComponentPublicInstance<{}, {}, {}, {}, {}, {}, {}, {}, false, import("vue").ComponentOptionsBase<any, any, any, any, any, any, any, any, any, {}, {}, string>, {}>;
export declare const isComponent: (vn: VNode, type?: VNodeTypes) => type is Component<any, any, any, import("vue").ComputedOptions, import("vue").MethodOptions>;
export declare const isElement: (vn: VNode) => boolean;
export declare const isText: (vn: VNode, children: VNode['children']) => children is string;
export declare const isSlotsChildren: (vn: VNode, children: VNode['children']) => children is Readonly<{
    [name: string]: import("vue").Slot | undefined;
}>;
export declare const isArrayChildren: (vn: VNode, children: VNode['children']) => children is VNode<import("vue").RendererNode, import("vue").RendererElement, {
    [key: string]: any;
}>[];