code: private boolean vForVariableAndKey(String loopVariablesDefinition,
        TemplateParserContext context) {
      Matcher matcher = VFOR_VARIABLE_AND_KEY.matcher(loopVariablesDefinition);
      if (matcher.matches()) {
        initLoopVariable(matcher.group(1), matcher.group(2), context);
        initKeyVariable(matcher.group(3), context);
        return true;
      }
  
      return false;
    }
docs: v-for on an Object with a loop variable and the key: "(Item item, key) in (Object) myObject"
  
  @param loopVariablesDefinition The variable definition ("(Item item, key)" above)
  @param context The context of the parser
  @return true if we managed the case, false otherwise