docs: def profile_path(self, path, must_exist=False):
          """Return path from current profile."""
          full_path = self.session.profile / path
          if must_exist and not full_path.exists():
              raise FileNotFoundError(
                  errno.ENOENT,
                  os.strerror(errno.ENOENT),
                  PurePath(full_path).name,
              )
          return full_path