@Nonnull
  public View put(final String name, final Object value) {
    requireNonNull(name, "Model name is required.");
    model.put(name, value);
    return this;
  }
@Nonnull
  public View put(final String name, final Object value) {
    requireNonNull(name, "Model name is required.");
    model.put(name, value);
    return this;
  }
@ Nonnull public View put ( final String name , final Object value ) { requireNonNull ( name , "Model name is required." ) ; model . put ( name , value ) ; return this ; }
Set a model attribute and override existing attribute.

@param name Attribute's name.
@param value Attribute's value.
@return This view.
Set a model attribute and override existing attribute .