code: public static Header matches(final String name, final String value)
     {
        return new Header(name, value) {
           @Override
           public String toString()
           {
              return "Header.matches(\"" + name + "\", \"" + value + "\")";
           }
        };
     }
docs: Create a {@link Header} condition that matches against both header name and values.
  <p>
  The given name and value patterns may be parameterized:
  <p>
  <code>
  Header.matches("Accept-Encoding", "{encoding}")<br>
  Header.matches("Accept-{type}", "{value}")<br>
  ...
  </code>
  <p>
  
  @see {@link ConfigurationRuleParameterBuilder#where(String) {@link HttpServletRequest#getHeader(String)}
  
  @param name {@link ParameterizedPattern} matching the header name.
  @param value {@link ParameterizedPattern} matching the header value.