import { Listener } from '@ethersproject/abstract-provider';
import { CommunityResourcable, WebSocketProvider } from '@ethersproject/providers';
import { EthersEvent } from '../internal/ethers-event';
import { AlchemyEventType } from '../types/types';
/**
 * SDK's custom implementation fo the ethers.js's 'AlchemyWebSocketProvider'.
 *
 * Do not call this constructor directly. Instead, instantiate an instance of
 * {@link Alchemy} and call {@link Alchemy.config.getWebSocketProvider()}.
 *
 * @public
 */
export declare class AlchemyWebSocketProvider extends WebSocketProvider implements CommunityResourcable {
    _events: Array<EthersEvent>;
    readonly apiKey: string;
    /**
     * Overridden implementation of ethers that includes Alchemy based subscriptions.
     *
     * @param eventName Event to subscribe to
     * @param listener The listener function to call when the event is triggered.
     * @override
     * @public
     */
    on(eventName: AlchemyEventType, listener: Listener): this;
    /**
     * Overridden implementation of ethers that includes Alchemy based
     * subscriptions. Adds a listener to the triggered for only the next
     * {@link eventName} event, after which it will be removed.
     *
     * @param eventName Event to subscribe to
     * @param listener The listener function to call when the event is triggered.
     * @override
     * @public
     */
    once(eventName: AlchemyEventType, listener: Listener): this;
    /**
     * Removes the provided {@link listener} for the {@link eventName} event. If no
     * listener is provided, all listeners for the event will be removed.
     *
     * @param eventName Event to unlisten to.
     * @param listener The listener function to remove.
     * @override
     * @public
     */
    off(eventName: AlchemyEventType, listener?: Listener): this;
    /**
     * Remove all listeners for the provided {@link eventName} event. If no event
     * is provided, all events and their listeners are removed.
     *
     * @param eventName The event to remove all listeners for.
     * @override
     * @public
     */
    removeAllListeners(eventName?: AlchemyEventType): this;
    /**
     * Returns the number of listeners for the provided {@link eventName} event. If
     * no event is provided, the total number of listeners for all events is returned.
     *
     * @param eventName The event to get the number of listeners for.
     * @public
     * @override
     */
    listenerCount(eventName?: AlchemyEventType): number;
    /**
     * Returns an array of listeners for the provided {@link eventName} event. If
     * no event is provided, all listeners will be included.
     *
     * @param eventName The event to get the listeners for.
     * @public
     * @override
     */
    listeners(eventName?: AlchemyEventType): Array<Listener>;
    /** @override */
    destroy(): Promise<void>;
    /**
     * Overrides the ether's `isCommunityResource()` method. Returns true if the
     * current api key is the default key.
     *
     * @override
     */
    isCommunityResource(): boolean;
    private emitEvent;
    /**
     * DO NOT MODIFY.
     *
     * Original code copied over from ether.js's `BaseProvider.off()`.
     *
     * This method is copied over directly in order to implement Alchemy's unique
     * subscription types. The only difference is that this method calls
     * {@link getAlchemyEventTag} instead of the original `getEventTag()` method in
     * order to parse the Alchemy subscription event.
     *
     * @private
     */
    private _off;
    /**
     * DO NOT MODIFY.
     *
     * Original code copied over from ether.js's `BaseProvider.removeAllListeners()`.
     *
     * This method is copied over directly in order to implement Alchemy's unique
     * subscription types. The only difference is that this method calls
     * {@link getAlchemyEventTag} instead of the original `getEventTag()` method in
     * order to parse the Alchemy subscription event.
     *
     * @private
     */
    private _removeAllListeners;
    /**
     * DO NOT MODIFY.
     *
     * Original code copied over from ether.js's `BaseProvider.listenerCount()`.
     *
     * This method is copied over directly in order to implement Alchemy's unique
     * subscription types. The only difference is that this method calls
     * {@link getAlchemyEventTag} instead of the original `getEventTag()` method in
     * order to parse the Alchemy subscription event.
     *
     * @private
     */
    private _listenerCount;
    /**
     * DO NOT MODIFY.
     *
     * Original code copied over from ether.js's `BaseProvider.listeners()`.
     *
     * This method is copied over directly in order to implement Alchemy's unique
     * subscription types. The only difference is that this method calls
     * {@link getAlchemyEventTag} instead of the original `getEventTag()` method in
     * order to parse the Alchemy subscription event.
     *
     * @private
     */
    private _listeners;
}