code: @Nonnull
    public final HttpClientFactory setRetryMode (@Nonnull final ERetryMode eRetryMode)
    {
      ValueEnforcer.notNull (eRetryMode, "RetryMode");
      m_eRetryMode = eRetryMode;
      return this;
    }
docs: Set the retry mode to use.
  
  @param eRetryMode
  Retry mode to use. Must not be <code>null</code>.
  @return this for chaining
  @since 9.0.0