Extracts and returns the best engine names from a named list of model workflows.
get_best_model_names(models)A named character vector. The names of the vector correspond to the algorithm names, and the values represent the chosen best engine name for that algorithm.
A named list where each element corresponds to an algorithm and contains a list of model workflows.
Each workflow should be compatible with tune::extract_fit_parsnip.
For each algorithm, the function extracts the engine names from the model workflows using tune::extract_fit_parsnip.
It then chooses "randomForest" if it is available; otherwise, it selects the first non-NA engine.
If no engine names can be extracted for an algorithm, NA_character_ is returned.