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  ;; Note how we always use the return value of disj! and conj! in these examples
  ;; for all future modifications, rather than (incorrectly) ignoring the return
  ;; value and continuing to modify the original transient set.  See examples for
  ;; assoc! and dissoc! for more discussion and examples of this.
  
  user=> (def foo (transient #{'pore-pore 'slow 'yukkuri}))
  #'user/foo
  user=> (count foo)
  3
  user=> (def foo (disj! foo 'yukkuri))
  #'user/foo
  user=> foo
  #<TransientHashSet clojure.lang.PersistentHashSet$TransientHashSet@3bd840d9>
  user=> (count foo)
  2
  user=> (def foo (conj! foo 'yukkuri))
  #'user/foo
  user=> foo
  #<TransientHashSet clojure.lang.PersistentHashSet$TransientHashSet@3bd840d9>
  user=> (count foo)
  3
  user=> (def foo (persistent! foo))
  #'user/foo
  user=> foo
  #{yukkuri slow pore-pore}
  

  ;; Note how we always use the return value of disj! and conj! in these examples ;; for all future modifications, rather than (incorrectly) ignoring the return ;; value and continuing to modify the original transient set. See examples for ;; assoc! and dissoc! for more discussion and examples of this. user=> (def foo (transient #{'pore-pore 'slow 'yukkuri})) #'user/foo user=> (count foo) 3 user=> (def foo (disj! foo 'yukkuri)) #'user/foo user=> foo #<TransientHashSet clojure.lang.PersistentHashSet$TransientHashSet@3bd840d9> user=> (count foo) 2 user=> (def foo (conj! foo 'yukkuri)) #'user/foo user=> foo #<TransientHashSet clojure.lang.PersistentHashSet$TransientHashSet@3bd840d9> user=> (count foo) 3 user=> (def foo (persistent! foo)) #'user/foo user=> foo #{yukkuri slow pore-pore}