You don't have to understand the library, the author's coding style, or even much of the language in order to answer a question like this. You grep the codebas

You don't have to understand the library, the author's coding style, or even much of the language in order to answer a question like this. You grep the codebase for '302' to find the constant that represents a redirect, and then you grep for that constant. 90% of the time, that should take you right to the chunk of code you're interested in.