code: public org.grails.datastore.mapping.query.api.Criteria in(String propertyName, Object[] values) {
          if (!validateSimpleExpression()) {
              throwRuntimeException(new IllegalArgumentException("Call to [in] with propertyName [" +
                      propertyName + "] and values [" + values + "] not allowed here."));
          }
  
          propertyName = calculatePropertyName(propertyName);
          addToCriteria(Restrictions.in(propertyName, values));
          return this;
      }
docs: Applys a "in" contrain on the specified property
  @param propertyName The property name
  @param values A collection of values
  
  @return A Criterion instance