docs: def export_to_bw2(self):
          """
          Export the lcopt model in the native brightway 2 format
  
          returns name, database
  
          to use it to export, then import to brightway::
  
              name, db = model.export_to_bw2()
              import brightway2 as bw
              bw.projects.set_current('MyProject')
              new_db = bw.Database(name)
              new_db.write(db)
              new_db.process()
  
          """
          my_exporter = Bw2Exporter(self)
          name, bw2db = my_exporter.export_to_bw2()
          return name, bw2db