How use a defined PPT template on PPTXGEN

I have a defined template, and I want to use it on the ppt exported using PPTXGEN LIBRARY. is it possible ?

Solution

Only if you convert your template to (i.e. implement your template in) Javascript.

I found a python package here: python-pptx-text-replacer

If you are in an company, there's a commercial package called docxtemplate.