docs: def get_snapshots(self, si, logger, vm_uuid):
          """
          Restores a virtual machine to a snapshot
          :param vim.ServiceInstance si: py_vmomi service instance
          :param logger: Logger
          :param vm_uuid: uuid of the virtual machine
          """
          vm = self.pyvmomi_service.find_by_uuid(si, vm_uuid)
          logger.info("Get snapshots")
          snapshots = SnapshotRetriever.get_vm_snapshots(vm)
  
          return snapshots.keys()