import type { MachineDefinition } from "./MachineDefinition.js";
import type { EventObject, MachineContext, MachineStateSignal, StatechartOptionsOrKey } from "./types/index.js";
/**
 * Public facade, shaped like `Signal.state()` / `LocalSignal.state()`: a
 * callable read-only signal of the snapshot enriched with the machine API,
 * delegating to a `Statechart` engine.
 */
export declare class unstable_MachineSignal {
    static state<TContext extends MachineContext, TEvent extends EventObject, TOutput = unknown>(definition: MachineDefinition<TContext, TEvent, TOutput>, options?: StatechartOptionsOrKey): MachineStateSignal<TContext, TEvent, TOutput>;
}