Abstract method which must be implemented in subclasses, which must return a str path to a Python executable
        which will be used to run the script.

        See :meth:`BaseBackend.run <arca.BaseBackend.run>` to see arguments description.

def get_or_create_environment(self, repo: str, branch: str,
                                  git_repo: Repo, repo_path: Path) -> str:  # pragma: no cover
        """
        Abstract method which must be implemented in subclasses, which must return a str path to a Python executable
        which will be used to run the script.

        See :meth:`BaseBackend.run <arca.BaseBackend.run>` to see arguments description.
        """
        raise NotImplementedError