vm_api.create_vm_from_content_library_template([{"is_full_copy":True,"template_id":"ck74rk21wg5lz0786opdnzz5m","name":"name-string","cluster_id":"ck74rk21wg5lz0786opdnzz5m"}]) 仅能指定ELF集群,如果对接多个ZBS应如何指定?