Common - Tools - Object Factory:

def json_link_id(link_uuid : str) -> Dict:

    return {'link_uuid': {'uuid': link_uuid}}

def json_link(link_uuid : str, endpoint_ids : List[Dict], name : Optional[str] = None) -> Dict:

def json_link(

    link_uuid : str, endpoint_ids : List[Dict], name : Optional[str] = None,

    total_capacity_gbps : Optional[float] = None, current_capacity_gbps : Optional[float] = None

) -> Dict:

    result = {'link_id': json_link_id(link_uuid), 'link_endpoint_ids': copy.deepcopy(endpoint_ids)}

    if name is not None: result['name'] = name

    if total_capacity_gbps is not None:

        attributes : Dict = result.setdefault('attributes', dict())

        attributes.setdefault('total_capacity_gbps', total_capacity_gbps)

    if current_capacity_gbps is not None:

        attributes : Dict = result.setdefault('attributes', dict())

        attributes.setdefault('current_capacity_gbps', current_capacity_gbps)

    return result

def compose_link(endpoint_a, endpoint_z) -> Tuple[Dict, Dict]:

def compose_link(

    endpoint_a : Dict, endpoint_z : Dict, name : Optional[str] = None,

    total_capacity_gbps : Optional[float] = None, current_capacity_gbps : Optional[float] = None

) -> Tuple[Dict, Dict]:

    link_uuid = get_link_uuid(endpoint_a['endpoint_id'], endpoint_z['endpoint_id'])

    link_id   = json_link_id(link_uuid)

    link      = json_link(link_uuid, [endpoint_a['endpoint_id'], endpoint_z['endpoint_id']])

    link      = json_link(

        link_uuid, [endpoint_a['endpoint_id'], endpoint_z['endpoint_id']], name=name,

        total_capacity_gbps=total_capacity_gbps, current_capacity_gbps=current_capacity_gbps

    )

    return link_id, link