import {Observable} from 'rxjs'
import {ObservedValueOf} from 'rxjs'

/** @public */
export declare function useObservable<ObservableType extends Observable<any>>(
  observable: ObservableType,
  initialValue: ObservedValueOf<ObservableType> | (() => ObservedValueOf<ObservableType>),
): ObservedValueOf<ObservableType>

/** @public */
export declare function useObservable<ObservableType extends Observable<any>>(
  observable: ObservableType,
): undefined | ObservedValueOf<ObservableType>

/** @public */
export declare function useObservable<ObservableType extends Observable<any>, InitialValue>(
  observable: ObservableType,
  initialValue: InitialValue | (() => InitialValue),
): InitialValue | ObservedValueOf<ObservableType>

/** @public */
export declare function useObservableEvent<T, U>(
  handleEvent: (arg: Observable<T>) => Observable<U>,
): (arg: T) => void

export {}