def __init__(self, name):
     Formation.__init__(self, name, selector=DETypeSelector(name))
 def __init__(self, name, parentSelector, role=""):
   Formation.__init__(self, name, selector=instrumentSelector(parentSelector, name), role=role)
 def __init__(self, name):
   Formation.__init__(self, name, selector=DETypeSelector(name))
 def __init__(self, name, parentSelector, role=""):
     Formation.__init__(self,
                        name,
                        selector=instrumentSelector(parentSelector, name),
                        role=role)