  void corruptMetadataFramePayload(Buffer::Instance& data) {
    const size_t length = data.length();
    const size_t corrupt_start = 10;
    if (length < corrupt_start || length > METADATA_MAX_PAYLOAD_SIZE) {
      ENVOY_LOG_MISC(error, "data size too big or too small");
      return;
    }
    corruptAtOffset(data, corrupt_start, 0xff);
  }
  void corruptMetadataFramePayload(Buffer::Instance& data) {
    const size_t length = data.length();
    const size_t corrupt_start = 10;
    if (length < corrupt_start || length > METADATA_MAX_PAYLOAD_SIZE) {
      ENVOY_LOG_MISC(error, "data size too big or too small");
      return;
    }
    corruptAtOffset(data, corrupt_start, 0xff);
  }