}

    if (requireSettings && type != TYPE_SETTINGS) {
      throw IOException("Expected a SETTINGS frame but was ${formattedType(type)}")
    }

    when (type) {
      TYPE_DATA -> readData(handler, length, flags, streamId)
      TYPE_HEADERS -> readHeaders(handler, length, flags, streamId)
      TYPE_PRIORITY -> readPriority(handler, length, flags, streamId)