What is the functionality of parameters.parse()?

Dear all,

Sometimes I saw

parameters.parse()

in other people’s fenics code. I googled it and searched it in the fenics tutorial but didn’t find any useful information.
Does anyone know the functionality of this command?
Thank you very much in advance.

For example, the command in this post:

Looking at the documentation, it means parsing command line arguments: Bitbucket
see for instance that emulates this:
Bitbucket