Remove redundant function and add docs
Remove redundant function and add docs

sorgerlab/belpy,johnbachman/belpy,johnbachman/belpy,sorgerlab/belpy,sorgerlab/belpy,johnbachman/indra,sorgerlab/indra,bgyori/indra,johnbachman/indra,sorgerlab/indra,bgyori/indra,bgyori/indra,johnbachman/indra,sorgerlab/indra,johnbachman/belpy