class AbstractManagedChannelImplBuilder extends ManagedChannelBuilder<T> {

  @Override
  public final T retryBufferSize(long bytes) {
    checkArgument(bytes > 0L, "retry buffer size must be positive");
    retryBufferSize = bytes;
    return thisT();
  }

  protected  AbstractManagedChannelImplBuilder(String target);
  protected  AbstractManagedChannelImplBuilder(SocketAddress directServerAddress, String authority);

}