def execute(context, instance, destination, block_migration, disk_over_commit):
    task = LiveMigrationTask(context, instance, destination, block_migration, disk_over_commit)
    return task.execute()
def execute(context, instance, destination, block_migration, disk_over_commit):
    task = LiveMigrationTask(context, instance, destination, block_migration, disk_over_commit)
    return task.execute()