code: public static <T> Level0SetOperator<Set<T>,T> on(final Type<Set<T>> type, final Set<? extends T> target) {
          return onSetOf(Types.setComponentOf(type),target);
      }
docs: <p>
  Creates an <i>operation expression</i> on the specified target object, specifying the
  target type by means of the <tt>type</tt> parameter.
  </p>
  
  @param type the type of the target object (input type for the expression)
  @param target the target object on which the expression will execute
  @return an operator, ready for chaining