Cannot read property 'prototype' of undefined when instantiating Axios class from template

[ghost]

Hi everyone, how are you doing? I've been playing with the axios template but can't figure out what's wrong here. Whenever I try to instantiate the api I get the following error:

Cannot read property 'prototype' of undefined

with BFF being the class exported by the typescript file generated when running the command to generate axios code from swagger docs:

npx swagger-typescript-api -p ./src/clients/bff/bff.json -o ./src -n clients/bff/bff.ts --axios --api-class-name BFF

What am I missing here?