///
///
declare module goog.messaging {
/**
* Creates a bidirectional pipe between two message channels.
*
* @param {goog.messaging.MessageChannel} channel1 The first channel.
* @param {goog.messaging.MessageChannel} channel2 The second channel.
*/
function pipe(channel1: goog.messaging.MessageChannel, channel2: goog.messaging.MessageChannel): void;
}