code: public ThymeleafEngineConfigBuilder<P> setTemplateModeHandlers(final Set<? extends ITemplateModeHandler> templateModeHandlers) {
  		this.templateModeHandlers().clear();
  		this.templateModeHandlers().addAll(templateModeHandlers);
  		return this;
  	}
docs: <p>
  Sets the Template Mode Handlers to be used by this template engine. Every
  available template mode must have its corresponding handler.
  </p>
  <p>
  By default, template mode handlers set are
  {@link StandardTemplateModeHandlers#ALL_TEMPLATE_MODE_HANDLERS}
  </p>
  <p>
  This operation can only be executed before processing templates for the
  first time. Once a template is processed, the template engine is
  considered to be <i>initialized</i>, and from then on any attempt to
  change its configuration will result in an exception.
  </p>
  
  @param templateModeHandlers
  the Set of Template Mode Handlers.
  @return this for fluent use