import type { App, Plugin, SetupContext, EmitsOptions } from 'vue';
export type SFCWithInstall<T> = T & Plugin;
export type SFCInstallWithContext<T> = SFCWithInstall<T> & {
    _context: App | null;
};
export type EmitFn<E extends EmitsOptions> = SetupContext<E>['emit'];
export declare const withInstall: <T, E extends Record<string, any>>(main: T, extra?: E) => SFCWithInstall<T> & E;
export declare const withInstallFunction: <T>(fn: T, name: string) => SFCInstallWithContext<T>;
export declare function isNumber(value: any): boolean;
export declare function isNumeric(value: any): boolean;
export declare function isString(obj: any): boolean;
export declare function isBoolean(value: any): value is boolean;
export declare function isDateObj(value: any): boolean;
export declare function isObject(obj: any): boolean;
export declare function isArray(obj: any): boolean;
export declare function isHtmlElement(node: any): boolean;
export declare const isFunction: (functionToCheck: any) => boolean;
export declare const isUndefined: (val: any) => boolean;
export declare const isDefined: (val: any) => boolean;
export declare function isPromise(val: any): boolean;