* `message` {Object}
* `sendHandle` {Handle object}
-This function is equal to the send methods provided by
-`child_process.fork()`. In the master you should use this function to
-send a message to a specific worker.
+Send a message to a worker or master, optionally with a handle.
-In a worker you can also use `process.send(message)`, it is the same function.
+In the master this sends a message to a specific worker. It is identical to
+[child.send()](child_process.html#child_process_child_send_message_sendhandle).
+
+In a worker this sends a message to the master. It is identical to
+`process.send()`.
This example will echo back all messages from the master: