'Disables notifications for all services associated with hosts
in a particular hostgroup.
Note that this does not disable notifications for the hosts in
the hostgroup - see the DISABLE_HOSTGROUP_HOST_NOTIFICATIONS
command for that.
Syntax: DISABLE_HOSTGROUP_SVC_NOTIFICATIONS;<hostgroup_name>'

def disable_hostgroup_svc_notifications(self, hostgroup):

    cmd = 'DISABLE_HOSTGROUP_SVC_NOTIFICATIONS'
    notif_str = self._fmt_notif_str(cmd, hostgroup)
    self._write_command(notif_str)
