What to import for -?> in Clojure?
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I'm trying to use [`-?>`][1] in Clojure but get the error:

    Caused by: java.lang.RuntimeException: Unable to resolve symbol: -?> in this context

What do I need to import in order to use it?


  [1]: http://clojuredocs.org/clojure_contrib/1.2.0/clojure.contrib.core/-_q%3E