def sliced_by_wildcard(self, many_sid_array):
     """ slice by wildcard"""
     return sel_sid(many_sid_array, "*.*.*.EHZ")
 def sliced_by_seed(self, many_sid_array):
     """ get a particular seed_id from the default array"""
     return sel_sid(many_sid_array, self.default_seed_id)