import Endpoint from "../components/Endpoint";
import { FormattedResponse } from "../components/RequestQueue";
import APIResponse from "../responses/APIResponse";
export default class UtilityEndpoint extends Endpoint<APIResponse> {
    /**
     * Creates a random string of letters, to be used as an ID.
     * The IDs are not cryptographically secure, don't use this for anything important.
     * There is no garbage collection here, don't forget to use `remove()` if you need to use this for a long time.
     * @param unique If false, simply returns a randomized string
     */
    makeID(unique?: boolean): string;
    /**
     * Checks whether the specified ID has been registered
     * @param id String ID to check
     */
    hasID(id: string): boolean;
    /**
     * Remove the provided ID from the records.
     * Make sure that the corresponding element has also been removed, to avoid possible collisions
     * @param id String ID to remove
     * @returns true if the ID existed, false otherwise
     */
    clearID(id: string): boolean;
    /**
     * Checks whether or not e621 is accessible by sending a HEAD request.
     * @returns {boolean} `true` if you are online, `false` otherwise
     */
    isOnline(): Promise<boolean>;
    /** Test command that always returns error 403 */
    test403(): Promise<FormattedResponse<null>>;
    /** Test command that always returns error 404 */
    test404(): Promise<FormattedResponse<null>>;
}