Add test for SBGN assembly/export in PysbAssembler
Add test for SBGN assembly/export in PysbAssembler

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