import type { Deferrable } from './types/inputs/Deferrable.js';
import type { AnyAwaitableIterable } from './types/inputs/MinimalIterator.js';
import type { Mutable } from './types/inputs/Mutable.js';
import type { Subscribable, SubscribableHolder } from './types/inputs/Subscribable.js';
import type { Awaitable } from './types/utils.js';
export type ResourceFeature<D> = AnyAwaitableIterable<D> | Subscribable<D> | Deferrable<Awaitable<D>> | Mutable<any, Awaitable<D>>;
/**
 * Helper to build complex resource types.
 */
export interface ResourceBuilder<D, R = unknown> {
    /**
     * Adds defined feature to resource.
     * @param feature
     */
    add<F extends ResourceFeature<D>>(feature: F): ResourceBuilder<D, Omit<R, keyof F> & F>;
    /**
     * Adds subscribable feature based on given holder.
     * @param holder
     */
    add<F extends SubscribableHolder<D>>(holder: F): ResourceBuilder<D, Omit<R, 'subscribe'> & Subscribable<D>>;
    /**
     * Return final resource object.
     */
    build(): R;
}
/**
 * Helper to build complex resource types.
 *
 * @since 1.0.0
 * @version 2.5.0 Add support for async iterators
 */
export declare function resource$<D>(): ResourceBuilder<D>;