Set global configuration parameters.


print_changed_only – If True, only the parameters (of the step’s parent estimator) that were set to non-default values will be printed when printing a step. The name and n_outputs parameters are always printed. For example, if there is a SomeStep step class that inherited from an estimator (or any class that implements the scikit-learn API) with signature (x=123, y='foo'), setting the flag to True would print SomeStep(name='SomeStep_0', n_outputs=1) and setting to False would print SomeStep(x=123, y='foo', name='SomeStep_0', n_outputs=1).