@Deprecated
  public static Request create(
      String method,
      String url,
      Map<String, Collection<String>> headers,
      byte[] body,
      Charset charset) {
    checkNotNull(method, "httpMethod of %s", method);
    final HttpMethod httpMethod = HttpMethod.valueOf(method.toUpperCase());
    return create(httpMethod, url, headers, body, charset, null);
  }
No parameters can be null except {@code body} and {@code charset}. All parameters must be
effectively immutable, via safe copies, not mutating or otherwise.

@deprecated {@link #create(HttpMethod, String, Map, byte[], Charset)}
core/src/main/java/feign/Request.java