'Messaging settings menu items:
These items are used in multiple menus, but each item instance can
always only belong to one parent, so we need to re-instantiate
with the same parameters, and therefore this is defined as a
function here.'

@classmethod
def settings_messaging(cls):

    return [M('Email    Channels    (Inbound)', c='msg', f='email_channel'), M('Facebook    Channels', c='msg', f='facebook_channel'), M('RSS    Channels', c='msg', f='rss_channel'), M('SMS    Outbound    Gateways', c='msg', f='sms_outbound_gateway')(M('SMS    Modem    Channels', c='msg', f='sms_modem_channel'), M('SMS    SMTP    Channels', c='msg', f='sms_smtp_channel'), M('SMS    WebAPI    Channels', c='msg', f='sms_webapi_channel')), M('Mobile    Commons    Channels', c='msg', f='mcommons_channel'), M('Twilio    Channels', c='msg', f='twilio_channel'), M('Twitter    Channels', c='msg', f='twitter_channel'), M('Parsers', c='msg', f='parser')]
