LocalOutlierFactor exposes methods that it shouldn't

Describe the issue linked to the documentation

The LocalOutlierFactor class (and hence documentation) exposes methods that it probably shouldn’t:

https://scikit-learn.org/stable/modules/generated/sklearn.neighbors.LocalOutlierFactor.html#sklearn.neighbors.LocalOutlierFactor.kneighbors https://scikit-learn.org/stable/modules/generated/sklearn.neighbors.LocalOutlierFactor.html#sklearn.neighbors.LocalOutlierFactor.kneighbors_graph

these appear to be inherited from the parent class, and should not be exposed.

Suggest a potential alternative/fix

Rather than using KNeighborsMixin and NeighborsBase, the implementation should probably just use an instance of a nearest neighbor search internally, and not expose this as part of the local outlier factor API.

[kno10]

Hiding them in the documentation is a hack, not a solution: The methods will still show up in tab completion in IDEs, and still pollute the API.

[thomasjpfan]

@oswinoswin The most acceptable solution is the one suggested in https://github.com/scikit-learn/scikit-learn/issues/21876#issuecomment-1243375277. I do not think it is a simple task for someone new. I recommend https://github.com/scikit-learn/scikit-learn/issues/24862 as a good first issue.