import { IIRCOptions } from '../types/irc.interfaces';
/**
 * Estimate the length of the message the actual server will send to clients,
 * you can use this information to truncate/split your messages.
 *
 * `:nickname!username@hostname command args :trailing\r\n`
 * @param options IRC options (nick, hostname, username)
 * @param command Command to be sent
 * @param args Arguments for the command
 * @returns Predictive length of the message without the trailing
 */
export declare const estimateMessagePrefixLength: (options: IIRCOptions, command: string, args: string[]) => number;