References:
        https://developer.github.com/v3/repos/branches/#get-branch

def get_branch_details(repo: GithubRepository, branch: str) -> Any:
    """
    References:
        https://developer.github.com/v3/repos/branches/#get-branch
    """
    url = ("https://api.github.com/repos/{}/{}/branches/{}"
           "?access_token={}".format(repo.organization,
                                     repo.name,
                                     branch,
                                     repo.access_token))
    response = requests.get(url)

    if response.status_code != 200:
        raise RuntimeError(
            'Failed to get branch details. Code: {}. Content: {}.'.format(
                response.status_code, response.content))

    return json.JSONDecoder().decode(response.content.decode())