docs: public Collection<VariableDesc> getVariablesCurrentState(long processInstanceId) {
      	Map<String, Object> params = new HashMap<String, Object>();
          params.put("processInstanceId", processInstanceId);
          List<VariableDesc> variablesState = commandService.execute(
  				new QueryNameCommand<List<VariableDesc>>("getVariablesCurrentState", params));
  
          return variablesState;
      }