How to interpret the results of the hyperparameters search

[11Dmitriy11]

Hello! Could you please clarify how can I interpret the results of hyperparameters search (model.p). Is it a pipeline of some methods (concatenated with '->') that will be implemented to data at fitting stage. I see several models in that scheme. Is it an ensemble of models or pipeline of models, where predicted values from one model were used to train the next model.