code: /**
   * Copyright (c) Rich Hickey. All rights reserved.
   * The use and distribution terms for this software are covered by the
   * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
   * which can be found in the file epl-v10.html at the root of this distribution.
   * By using this software in any fashion, you are agreeing to be bound by
   * the terms of this license.
   * You must not remove this notice, or any other, from this software.
   */
  
  package clojure.lang;
  
  
  public interface IPersistentMap extends Iterable, Associative, Counted{
  
  
  IPersistentMap assoc(Object key, Object val);
  
  IPersistentMap assocEx(Object key, Object val) ;
  
  IPersistentMap without(Object key) ;
  
  }
  