I would like to find some symmetric 8 bit quantization models to deploy on hardware. However, every model I found in model zoo are asymmetric. Hosted models  |  TensorFlow Lite

  
      

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TensorFlow Lite 8-bit quantization specification



  

  
    
    
  

  


Here mentioned that “In the past our quantization tooling used per-tensor, asymmetric, uint8 quantization. New tooling, reference kernels, and optimized kernels for 8-bit quantization will use this spec.”
Do you mean that symmetric quantizated tflite models are still under development? Or I could find some symmetric quantization tflite model elsewhere?