Major classes are HDBSCAN and RobustSingleLinkage.
hdbscan.hdbscan.HDBSCAN
hdbscan.robust_single_linkage.RobustSingleLinkage
Other useful classes are contained in the plots module, the validity module, and the prediction module.
hdbscan.plots.CondensedTree
hdbscan.plots.SingleLinkageTree
hdbscan.plots.MinimumSpanningTree
hdbscan.validity
hdbscan.prediction