code: 	public CsrfConfigurer<H> csrfTokenRepository(
  			CsrfTokenRepository csrfTokenRepository) {
  		Assert.notNull(csrfTokenRepository, "csrfTokenRepository cannot be null");
  		this.csrfTokenRepository = csrfTokenRepository;
  		return this;
  	}
  
  	/**
  	 * Specify the {@link RequestMatcher} to use for determining when CSRF should be
  	 * applied. The default is to ignore GET, HEAD, TRACE, OPTIONS and process all other
  	 * requests.
  	 *
  	 * @param requireCsrfProtectionMatcher the {@link RequestMatcher} to use
  	 * @return the {@link CsrfConfigurer} for further customizations
  	 */
  