docs: async def get_vm_metadata(self, preset, vm_id):
          """ Get vm metadata
  
          :arg string preset: preset name
          :arg int vm_id: Virtual Machine id
          :return:  Metadata for Virtual Machine
          :rtype: dict
  
          Sample response:
             ``{ 'time_shutdown' : "12312312321' }``
          """
          vmshepherd = self.request.app.vmshepherd
          preset = vmshepherd.preset_manager.get_preset(preset)
          vm_info = await preset.iaas.get_vm(vm_id)
          ret_info = copy.deepcopy(vm_info.metadata) if vm_info.metadata else {}
          ret_info['tags'] = vm_info.tags
          ret_info['iaas_shutdown'] = vm_info.timed_shutdown_at
          return ret_info