t_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">conf_xgboost</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../../config/training_config/index.html#bluecast.config.training_config.XgboostTuneParamsRegressionConfig" title="bluecast.config.training_config.XgboostTuneParamsRegressionConfig"><span class="pre">bluecast.config.training_config.XgboostTuneParamsRegre