code: @Override
      protected void setPseudoHeaders(HashMap<String, String> pseudoHeaders) throws Exception {
          //Only defined pseudo-header for a response is :status.
  
          for (Entry<String, String> entry : pseudoHeaders.entrySet()) {
              H2HeaderField header = new H2HeaderField(entry.getKey(), entry.getValue());
              if (!isValidPseudoHeader(header)) {
                  throw new CompressionException("Invalid pseudo-header for decompression context: " + header.toString());
              }
          }
          setStatusCode(Integer.getInteger(pseudoHeaders.get(HpackConstants.STATUS)));
      }
docs: Set the Version and Status for a HTTP/2.0 response.
  
  @param pseudoHeader