How to use the pyboolector.Boolector function in PyBoolector

def __init__(self, environment, logic, **options):
        IncrementalTrackingSolver.__init__(self,
                                           environment=environment,
                                           logic=logic,
                                           **options)
        self.btor = pyboolector.Boolector()
        self.options(self)
        self.converter = BTORConverter(environment, self.btor)
        self.mgr = environment.formula_manager
        self.declarations = {}
        return

# EOC BoolectorOptions

        pass