def get_ephemeral_vhd_path(self, instance_name, format_ext):
        instance_path = self.get_instance_dir(instance_name)
        return os.path.join(instance_path, 'ephemeral.' + format_ext.lower())
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/hyperv/pathutils.py/PathUtils.get_ephemeral_vhd_path/original