We could see the same in Keras as now it is again a python only repo:

  

      github.com/keras-team/keras
  

  
    
  
	  
  

  
    
      Support 3D Pre-trained Model (DepthwiseConv3D and SeparableConv3D) 3
    

    
      
        opened 
        
          
        
        Aug 3, 2021
      
      


      
        
          
          innat
        
      
    

    
        type:feature
        stat:awaiting response
    
  


  
    It must be a bug, a feature request, or a significant problem with the documenta…tion (for small docs fixes please send a PR instead).

1. The form below must be filled out.
**Here's why we have that policy:**. feature-request

2. Keras developers respond to issues. We want to focus on work that benefits the whole community, e.g., fixing bugs and adding features. Support only helps individuals. GitHub also notifies thousands of people when issues are filed. We want them to see you communicating an interesting problem, rather than being redirected to Stack Overflow.

**System information**. General. 
TensorFlow version (you are using): TF 2.5
Are you willing to contribute it (Yes/No): No

3. **Describe the feature and the current behavior/state**.
Describe the feature clearly here. Be sure to convey here why the requested feature is needed. Any brief description of the use-case would help.

It will be useful to enhance the research of medical imaging (3D modeling) and work on video data and more. There are available 2D classification models but unfortunately not a single 3D model for classification. 

For that, DepthwiseConv3D and [SeparableConv3D](https://github.com/keras-team/keras/issues/5639) official implementation is also needed. 

4. **Will this change the current api? How?**
It will enhance the API. 

5. **Who will benefit from this feature?**
Researcher on medical imaging and with video data and possibly all 3D format data. 

6. **[Contributing](https://github.com/keras-team/keras/blob/master/CONTRIBUTING.md)**

- Do you want to contribute a PR? (yes/no): no
- If yes, please read [this page](https://github.com/keras-team/keras/blob/master/CONTRIBUTING.md) for instructions
- Briefly describe your candidate solution(if contributing):


**Others**

There is (AFAIK) only one non-official code-bases for 3D modeling in `tf.keras` 

- [ZFTurbo/efficientnet_3D](https://github.com/ZFTurbo/efficientnet_3D)
- [ZFTurbo/classification_models_3D](https://github.com/ZFTurbo/classification_models_3D)