def create_github_client(self, project):
        """Create a github3 client per repo/installation."""
        token = self._get_installation_key(project=project)
        if not token:
            LOGGER.warning(
                "Could not find an authentication token for '%s'. Do you "
                "have access to this repository?",
                project,
            )
            return
        gh = github3.GitHubEnterprise(self.base_url)
        gh.login(token=token)
        return gh
Create a github3 client per repo/installation.