import { CreateComputedOptions, CreateSignalOptions, InputSignal, Signal, WritableSignal } from '@angular/core';
export type Signal2<T> = WritableSignal<T> & {
    get $(): T;
    set $(value: T);
    subscribe(callback: (value: T) => void): () => void;
};
export type Computed2<T> = Signal<T> & {
    get $(): T;
};
export declare function signal2<T>(initialValue: T, options?: CreateSignalOptions<T>): Signal2<T>;
export declare function patchWritableSignal<T>(sig: WritableSignal<T>): Signal2<T>;
export declare function computed2<T>(computation: () => T, options?: CreateComputedOptions<T>): Computed2<T>;
export declare function patchComputed<T>(sig: Signal<T>): Computed2<T>;
export type InputSignal2<T> = InputSignal<T> & {
    subscribe(callback: (value: T) => void, options?: {
        initial: boolean;
    }): () => void;
};
export declare function patchInputSignal<T>(input: Signal<T>): InputSignal2<T>;