ModuleNotFoundError: No module named 'keras.engine'

[adam-funk]

I have tensorflow 2.13, keras==2.13, and keras-ctcmodel installed (using pip in a conda environment). When I try to

from keras_ctcmodel.CTCModel import CTCModel

I get this exception:

    from keras_ctcmodel.CTCModel import CTCModel
  File "/home/adam/anaconda3/envs/simplehtr1/lib/python3.9/site-packages/keras_ctcmodel/CTCModel.py", line 7, in <module>
    from keras.engine import Model
ModuleNotFoundError: No module named 'keras.engine'

Does the package structure used in CTCModel need to be updated?