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The subtype approach of ``collections.namedtuple()`` introduces significant complexity and performance overhead, which is not necessary for the :class:`.Query` object's use case. .. versionchanged:: 0.8 Compatibility methods with ``collections.namedtuple()`` have been added including :attr:`.KeyedTuple._fields` and :meth:`.KeyedTuple._asdict`. .. seealso:: :ref:`ormtutorial_querying` cC@sJtj||ƒ}g|_|rF|jjt||ƒƒ||_n|S(N(ttuplet__new__t_labelst__dict__tupdatetzip(tclstvalstlabelstt((sb/var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/util/_collections.pyR9s cC@s&g|jD]}|dk r |^q S(s‰Return a list of string key names for this :class:`.KeyedTuple`. .. seealso:: :attr:`.KeyedTuple._fields` N(RtNone(tselftl((sb/var/www/send.findwatt.com/datamanager/lib/python2.7/site-packages/sqlalchemy/util/_collections.pytkeysAs cC@st|jƒƒS(sõReturn a tuple of string key names for this :class:`.KeyedTuple`. 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