AttributeError: 'str' object has no attribute 'branches' #2003

def get_all_projects(gl: Gitlab, all_flag: bool = True) -> Generator:
    if not gl:
        raise Exception("Pls specify gl srv conn.")
    projects = gl.projects.list(all=all_flag, as_list=False, max_retries=12)
    return projects

def cl_all_br_fmt_tmpl(prj: RESTObject, s_time: str, e_time: str, prj_lst: Optional[list] = None):
    if not prj_lst:
        prj_lst = []

    for branch in prj.branches.list(all=True):
        commits = prj.commits.list(all=True,
                                   query_parameters={"since": s_time,
                                                     "until": e_time,
                                                     "ref_name": branch.name})
        for commit in commits:
            if "Merge" not in commit.title:
                com = prj.commits.get(commit.id)
                _dict = {"committed_project_path": prj.path_with_namespace,
                         "committed_author": com.author_name,
                         "committed_branch": branch.name,
                         "committed_email": com.committer_email,
                         "committed_additions": com.stats["additions"],
                         "committed_deletions": com.stats["deletions"],
                         "committed_nums": com.stats["total"],
                         "committed_date": com.committed_date[:10]}
                prj_lst.append(_dict)
    return prj_lst

def cl_all_br_fmt(gl: Gitlab, s_time: str, e_time: str):
    if not gl:
        raise Exception("Pls specify gl srv conn.")

    projects = get_all_projects(gl)
        yield cl_all_br_fmt_tmpl(project, s_time, e_time)

def cl_all_br_fmt(gl: Gitlab, s_time: str, e_time: str):
    if not gl:
        raise Exception("Pls specify gl srv conn.")

    projects = get_all_projects(gl)
    pool_size = multiprocessing.cpu_count() * 3
    pool = multiprocessing.Pool(
        processes=pool_size,
    )
    p_func = partial(cl_all_br_fmt_tmpl, s_time, e_time)
    result_data = pool.map(p_func, projects)
    return result_data

gl = Gitlab(url=gl_url, private_token=gl_token, retry_transient_errors=True, timeout=30.0)
for itr in cl_all_br_fmt(gl, s_time, e_time):
    for i in itr:
        print(i)

projects = gl.projects.list(all=True, as_list=False, max_retries=12)
for project in projects:
    for branch in project.branches.list(all=True):

pool_size = multiprocessing.cpu_count() * 3
pool = multiprocessing.Pool(
    processes=pool_size,
)
p_func = partial(cl_all_br_fmt_tmpl, s_time, e_time)
projects = gl.projects.list(all=True, as_list=False, max_retries=12)
pool.map(p_func, projects)