import type { Deferrable } from '../types/inputs/Deferrable.js';
import type { MinimalAsyncIterator, MinimalIterator } from '../types/inputs/MinimalIterator.js';
import type { Mutable } from '../types/inputs/Mutable.js';
import type { Observer, PartialObserver } from '../types/inputs/Observer.js';
import type { Subscribable, SubscribableHolder } from '../types/inputs/Subscribable.js';
import type { Mapping } from '../types/mapping.js';
import type { StrictEmitter } from '../types/outputs/StrictEmitter.js';
import type { StrictListenable } from '../types/outputs/StrictListenable.js';
/**
 * Tests if given value is an Emitter object
 */
export declare function isEmitter<M extends Mapping = Mapping>(value: unknown): value is StrictEmitter<M>;
/**
 * Tests if given value is a Listenable object
 */
export declare function isListenable<M extends Mapping = Mapping>(value: unknown): value is StrictListenable<M>;
/**
 * Tests if given value is a Mutable object
 */
export declare function isMutable<A = any, D = unknown>(value: unknown): value is Mutable<A, D>;
/**
 * Tests if given value is a partial Observer object
 */
export declare function isPartialObserver<T = unknown>(value: unknown): value is PartialObserver<T>;
/**
 * Tests if given value is a minimal Observer object (with at least a next method)
 */
export declare function isMinimalObserver<T = unknown>(value: unknown): value is Pick<Observer<T>, 'next'>;
/**
 * Tests if given value is a fully defined Observer object
 */
export declare function isObserver<T = unknown>(value: unknown): value is Observer<T>;
/**
 * Tests if given value is a PromiseLike object
 */
export declare function isPromise<T = unknown>(value: unknown): value is PromiseLike<T>;
/**
 * Tests if given value is a Deferrable object
 */
export declare function isDeferrable<D = unknown>(value: unknown): value is Deferrable<D>;
/**
 * Tests if given value is a Subscribable object
 */
export declare function isSubscribable<D = unknown>(value: unknown): value is Subscribable<D>;
/**
 * Tests if given value is an ObservableHolder object
 */
export declare function isSubscribableHolder<D = unknown>(value: unknown): value is SubscribableHolder<D>;
/**
 * Tests if given value is an Iterator object
 *
 * @deprecated use {@link isAwaitableIterator} instead, it has a more precise typing
 */
export declare function isMinimalIterator<D = unknown>(value: unknown): value is MinimalIterator<D>;
/**
 * Tests if given value is an AwaitableIterator object
 */
export declare function isAwaitableIterator<D = unknown>(value: unknown): value is MinimalIterator<D> | MinimalAsyncIterator<D>;
/**
 * Tests if given value is an AsyncIterable object
 */
export declare function isAsyncIterable<D = unknown>(value: unknown): value is AsyncIterable<D>;
/**
 * Tests if given value is an Iterable object
 */
export declare function isIterable<D = unknown>(value: unknown): value is Iterable<D>;