code: @InternalFunction(precedence=1,isAssign=true)
      public void exclude(RuleContext ruleContext, String key, RuleProxyField proxyField)
      {
          exclude(proxyField,key,ruleContext);
      }
docs: /* (non-Javadoc)
  @see nz.co.senanque.rules.RuleSession#exclude(nz.co.senanque.rules.RuleContext, java.lang.String, nz.co.senanque.validationengine.ProxyField)