How to use _prepare_virtual_machine method in lisa

Best Python code snippet using lisa_python

transformers.py

Source:transformers.py

...102        else:103            # if no vm_name specified, use the first vm104            node = next(x for x in environment.nodes.list())105        assert isinstance(node, RemoteNode)106        self._prepare_virtual_machine(node)107        virtual_machine = get_vm(platform, node)108        vhd_location = self._export_vhd(platform, virtual_machine)109        self._restore_vm(platform, virtual_machine, node)110        return {self.__url_name: vhd_location}111    def _prepare_virtual_machine(self, node: RemoteNode) -> None:112        runbook: VhdTransformerSchema = self.runbook113        if not runbook.public_address:114            runbook.public_address = node.public_address115        # prepare vm for exporting116        wa = node.tools[Waagent]117        node.execute("export HISTSIZE=0", shell=True)118        wa.deprovision()119        # stop the vm120        startstop = node.features[StartStop]121        startstop.stop()122    def _export_vhd(self, platform: AzurePlatform, virtual_machine: Any) -> str:123        runbook: VhdTransformerSchema = self.runbook124        compute_client = get_compute_client(platform)125        # generate sas url from os disk, so it can be copied....

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