Unconditional import error on newer versions of transformers (Python 3.10+)

[erkovacs]

Describe the bug
Running the example code from here https://simpletransformers.ai/docs/multi-class-classification/ on Ubuntu Server 24.04, Python 3.10, Transformers 4.45.2 under conda yields the following error:

File [~/miniconda3/envs/playground-python-3.10/lib/python3.10/site-packages/simpletransformers/custom_models/models.py:64](http://host-kvsml01:8888/home/ekovacs/miniconda3/envs/playground-python-3.10/lib/python3.10/site-packages/simpletransformers/custom_models/models.py#line=63)
     61 from transformers.models.xlm_roberta.configuration_xlm_roberta import XLMRobertaConfig
     62 from simpletransformers.custom_models.retrieval_autoencoder import Autoencoder
---> 64 from transformers.models.xlnet.modeling_xlnet import XLNetSequenceSummary
     65 from transformers.models.xlm.modeling_xlm import XLMSequenceSummary
     66 from transformers.models.flaubert.modeling_flaubert import FlaubertSequenceSummary

ImportError: cannot import name 'XLNetSequenceSummary' from 'transformers.models.xlnet.modeling_xlnet' (/home/ekovacs/miniconda3/envs/playground-python-3.10/lib/python3.10/site-packages/transformers/models/xlnet/modeling_xlnet.py)

To Reproduce
Run the code from here https://simpletransformers.ai/docs/multi-class-classification/ under the abovementioned environment.

Expected behavior
Code should run as expected

Additional context
Is this library still maintained?