Saves the fitted attributes of this estimator. By default, it uses JSON and falls back to
pickle. Subclasses should overwrite this method if non-primitive attributes are
fitted.
Typically, this method should not be called directly. It is called as part of save().
- Parameters:
path (Path) -- The directory to which the fitted attributed should be saved.
- Raises:
NotFittedError -- If the estimator has not been fitted.
- Return type:
None