docs: private boolean isValidH2Request(HashMap<String, String> pseudoHeaders) {
          if (MethodValues.CONNECT.getName().equals(pseudoHeaders.get(HpackConstants.METHOD))) {
              if (pseudoHeaders.get(HpackConstants.PATH) == null && pseudoHeaders.get(HpackConstants.SCHEME) == null
                  && pseudoHeaders.get(HpackConstants.AUTHORITY) != null) {
                  this.isConnectStream = true;
                  return true;
              }
              return false;
          }
          if (pseudoHeaders.get(HpackConstants.METHOD) != null && pseudoHeaders.get(HpackConstants.PATH) != null &&
              pseudoHeaders.get(HpackConstants.SCHEME) != null) {
              return true;
          }
          return false;
      }