anchor.diff:  ASSERT    : 'assert' ;
   BREAK     : 'break' ;
   CLASS     : 'class' ;
  -PERSISTIT   : 'persistit';
   CONTINUE  : 'continue' ;
   DEF       : 'def' ;
   DELETE    : 'del' ;
  
positive.code: @after {
     $classdef.tree = stype;
  }
      : decorators? (PERSISTIT ON conn_name=NAME
              { 
                  persistant = true; 
                  conn_name_node = actions.makeNameNode($conn_name);
  
negative.code: BATCH     : 'mybatches' ;
  
  //ReL LEXER RULES
  PERSISTIT   : 'persist' (' ')+ 'on' (' ')+ ;
  SQL     : 'SQL' (' ')+ 'on' (' ')+ ;
  SIM     : 'SIM' (' ')+ 'on' (' ')+ ;
  Neo4j   : 'Neo4j' (' ')+ 'on' (' ')+ ;
  OORELINSERT: 'relInsert' (' ')+ 'on' (' ')+ ;
  OORELCOMMIT: 'relCommit' (' ')+ 'on' (' ')+ ;
  CONNECTTO:  'connectTo';
  NODEBUG:  'nodebug';
  
  