How to use the aj.plugins.packages.api.Package function in aj

def __make_package(self, dist):
        p = Package(self)
        p.id = '%s==%s' % (dist['name'], dist['version'])
        p.name = dist['name']
        p.version = dist['version']
        p.description = dist['summary']
        for d in pkg_resources.working_set:
            if d.key == p.name:
                p.is_installed = True
                p.installed_version = d.version
                p.is_upgradeable = p.installed_version != p.version
        return p

def __make_package(self, apt_package):
        p = Package(self)
        p.id = apt_package.fullname if hasattr(apt_package, 'fullname') else apt_package.name
        p.name = p.id
        v = apt_package.versions[-1]
        p.version = v.version
        p.description = v.summary
        p.is_installed = apt_package.installed is not None
        if p.is_installed:
            p.installed_version = apt_package.installed.version
            p.is_upgradeable = p.installed_version != p.version
        return p

def __make_package(self, pkg):
        pkg_installed = (self.yum.rpmdb.searchNames(names=[pkg.name]) or [None])[0]
        p = Package(self)
        p.id = '%s.%s' % (pkg.name, pkg.arch)
        p.name = pkg.name
        p.version = pkg.version
        p.description = pkg.arch  # nothing better
        p.is_installed = pkg_installed is not None
        if p.is_installed:
            p.installed_version = pkg_installed.version
            p.is_upgradeable = p.installed_version != p.version
        return p

def __make_package_pipdist(self, dist):
        p = Package(self)
        p.id = '%s==%s' % (dist.key, dist.version)
        p.name = dist.key
        p.version = dist.version
        p.description = None
        p.is_installed = True
        p.installed_version = dist.version
        return p