Ability to override default retryconfig

I understand that the following PR ( https://github.com/firebase/firebase-admin-go/pull/215/files ) brings in a default retryconfig which allows upto 4 retries . I did notice a comment there where there was some discussion around overriding this default retryconfig . Although it wasnt clearly specified how to go about doing it ( via some example ) . So the question I have is :

1. Is it possible to override default retryconfig?
2. If so , how to go about doing this?

CC: @hiranya911