code: public static final DataGridConfig getInstance(Class clazz) {
          DataGridConfig config = (DataGridConfig)ExtensionUtil.instantiateClass(clazz, DataGridConfig.class);
          return config;
      }
docs: Create an instance of a {@link DataGridConfig} object given a {@link Class} object.
  The given class must extend the {@link DataGridConfig} base class.
  
  @param clazz the class to instantiate
  @return the new {@link DataGridConfig} instance