def save(self, pkg_file):
        for part in self.parts:
            part.before_marshal()
        PackageWriter.write(pkg_file, self.rels, self.parts)
Save this package to *pkg_file*, where *file* can be either a path to
dataset/ETHPy150Open scanny/python-pptx/pptx/opc/package.py/OpcPackage.save