import { SetupContext } from 'vue';
export declare function useProps<T>(): T;
export declare function useCtx(): SetupContext;
export declare function getCurrentApp(): import("vue").App<any> | undefined;
export declare function getDeepOwnDescriptor(proto: any, key: string): PropertyDescriptor | null;
export declare function getProtoMetadata(target: any, key: symbol, returnDesc?: boolean): any[];
export declare function getEmitsFromProps(defaultProps: Record<string, any> | string[]): string[];