declare namespace ApiTwitch {
    /** Twitch user. */
    interface ApiUser {
        /** Twitch user's ID. */
        id: string | undefined;
        /** Twitch user's name. */
        name: string | undefined;
    }
    /**
     * Get {@link ApiUser} by Twitch user's name.
     * @param username Twitch user's name
     * @param client_id Client ID of your dev.twitch.tv application.
     * @param access_token Access token.
     * @returns ApiUser or null (if something went wrong).
     */
    function getUserByName(username: string, client_id: string, access_token: string): Promise<ApiUser | null>;
    /**
     * Get {@link ApiUser} by Twitch user's ID.
     * @param username Twitch user's ID
     * @param client_id Client ID of your dev.twitch.tv application.
     * @param access_token Access token.
     * @returns ApiUser or null (if something went wrong).
     */
    function getUserById(user_id: string, client_id: string, access_token: string): Promise<ApiUser | null>;
}
export default ApiTwitch;