Is it possible to perform ZBL connection with hybrid descriptors?

[DingChangjie]

Dear all,
I tried to perform ZBL connection with hybrid descriptors by specifying "use_srtab" in the input json file (Deepmd-kit version 2.1.5). However, the following "NotImplementedError" would occur before the training procedure begun:
Call initializer instance with the dtype argument instead of passing it to the constructor Traceback (most recent call last): File "/home/test/DeepMD/deepmd-kit_2_1_5/bin/dp", line 10, in <module> sys.exit(main()) File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/entrypoints/main.py", line 562, in main train_dp(**dict_args) File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/entrypoints/train.py", line 107, in train _do_work(jdata, run_opt, is_compress) File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/entrypoints/train.py", line 163, in _do_work model.build(train_data, stop_batch) File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/train/trainer.py", line 352, in build self._build_network(data, suffix) File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/train/trainer.py", line 376, in _build_network = self.model.build (self.place_holders['coord'], File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/model/ener.py", line 203, in build nlist, rij, sel_a, sel_r = self.descrpt.get_nlist() File "/home/test/DeepMD/deepmd-kit_2_1_5/lib/python3.10/site-packages/deepmd/descriptor/descriptor.py", line 141, in get_nlist raise NotImplementedError NotImplementedError
Since ZBL connection with single descriptors (like se_e2_a) is already available, Does the information above suggest that such a connection is not available to hybrid descriptors (till version 2.1.5)? Thanks!

[njzjz]

It looks so. I convert the discussion to issue #2286 for better tracking. Contribution is welcome.