code: @Override
      public HttpFilterBuilder containsValue(final String name, final String value) {
  
          return addFilter(new RequestFilter<HttpRequest>() {
  
              @Override
              public boolean matches(HttpRequest request) {
  
                  List<String> values = request.getHeaders(name);
  
                  for (String val : values) {
  
                      if (val.equals(values)) {
  
                          return true;
                      }
                  }
  
                  return false;
              }
  
              @Override
              public String toString() {
                  return String.format("containsValue('%s', '%s')", name, value);
              }
          });
      }
docs: {@inheritDoc}