How to access the distance table of the Product Quantization for a given query vector using the Python API.

[rsrs2013]

Hello Community,
I am trying to use the Faiss library for performing the product quantization of my base vectors. I am using the python Faiss library.
I am able to access the codewords (centroids), pqcodes (quantized base vectors). However, I am unable to access the distance table for a given query vector through the python api.

Is there a way to access the distance table using python api. If not, how to make it accessible ? What changes need to be made and where should it be made ?

-Thanks in advance
Santhosh.