import { type Observer, type Subscription } from './observable';
import { type Time } from './clock';
declare global {
    interface SymbolConstructor {
        readonly observable: symbol;
    }
}
export declare const observableSymbol: typeof Symbol.observable;
export interface InteropObservable<A> {
    subscribe: (observer: Partial<Observer<A>>) => Subscription;
}
export interface InteropObservableHolder<A> {
    readonly [Symbol.observable]: () => InteropObservable<A>;
}
export declare const newInteropObservable: <A>(get: () => A, subscribe: (observer: Observer<Time>) => Subscription) => InteropObservable<A>;