docs: public final String entryRuleArgument() throws RecognitionException {
          String current = null;
  
          AntlrDatatypeRuleToken iv_ruleArgument = null;
  
  
          try {
              // InternalSimpleExpressions.g:721:2: (iv_ruleArgument= ruleArgument EOF )
              // InternalSimpleExpressions.g:722:2: iv_ruleArgument= ruleArgument EOF
              {
               newCompositeNode(grammarAccess.getArgumentRule()); 
              pushFollow(FOLLOW_1);
              iv_ruleArgument=ruleArgument();
  
              state._fsp--;
  
               current =iv_ruleArgument.getText(); 
              match(input,EOF,FOLLOW_2); 
  
              }
  
          }
           
              catch (RecognitionException re) { 
                  recover(input,re); 
                  appendSkippedTokens();
              } 
          finally {
          }
          return current;
      }