How to use the enoslib.api function in enoslib

def _build_enoslib_configuration(configuration):
    _configuration = copy.deepcopy(configuration)
    enoslib_configuration = _configuration.get("provider", {})
    enoslib_configuration.pop("type", None)
    if "resources" in enoslib_configuration:
        return enoslib_configuration

    machines = []
    clusters = set()
    resources = _configuration.get("resources", {})
    resources = _configuration.get("topology", resources)
    for description in extra.gen_enoslib_roles(resources):
        for group in api.expand_groups(description["group"]):
            clusters.add(description["flavor"])
            role = description["role"]
            machine = {
                "roles": [group, role],
                "number": description["number"],
                "cluster": description["flavor"],
                # set default to 'medium' from enoslib FLAVOURS
                "flavour": DEFAULT_FLAVOUR_BY_ROLE.get(role, 'medium')
            }

            machines.append(machine)

    sites = g5k._get_sites(clusters)
    if len(sites) > 1:
        raise Exception("Multi-site deployment is not supported yet")

# FIXME: Find a neat way to put this into the next bootsrap_kolla
    # playbook. Then, remove this util function and call directly the
    # playbook from `enos os`.
    globals_path = os.path.join(env['resultdir'], 'globals.yml')
    globals_values = get_kolla_required_values(env)
    globals_values.update(env['config']['kolla'])
    globals_values.update(cwd=env['cwd'])
    with open(globals_path, 'w') as f:
        yaml.dump(globals_values, f, default_flow_style=False)

    # Patch kolla-ansible sources + Write admin-openrc and
    # password.yml in the result dir
    enos_values = mk_enos_values(env)
    playbook = os.path.join(ANSIBLE_DIR, 'bootstrap_kolla.yml')

    api.run_ansible([playbook], env['inventory'], extra_vars=enos_values)