Define machine w\o staring commisioning

I would like to commission only one node with custom commission script, but looks like its not possible:

On one hand:
- i can't define node via api and pass needed commission script (according api doc )

on other:
- i can't define node and NOT run auto commission :
root@maas:cat /usr/lib/python3/dist-packages/maasserver/api/machines.py |grep -i "machine = create_machine(request)" -A 6
        machine = create_machine(request)
        if request.user.is_superuser:
            d = machine.start_commissioning(request.user)
            # Silently ignore errors to prevent 500 errors. The commissioning
            # callbacks have their own logging. This fixes LP1600328.
            d.addErrback(lambda _: None)
        return machine

Could you please add option, to be create machine w\o auto-commisioning ?

Info :

dpkg -l |grep -i maas && uname -a
ii maas-cli 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS client and command-line interface
ii maas-common 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS server common files
ii maas-dhcp 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS DHCP server
ii maas-dns 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS DNS server
ii maas-proxy 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS Caching Proxy
ii maas-rack-controller 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all Rack Controller for MAAS
ii maas-region-api 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all Region controller API service for MAAS
ii maas-region-controller 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all Region Controller for MAAS
ii python3-django-maas 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS server Django web framework (Python 3)
ii python3-maas-client 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS python API client (Python 3)
ii python3-maas-provisioningserver 2.2.2-6099-g8751f91-0ubuntu1~16.04.1 all MAAS server provisioning libraries (Python 3)
Linux cfg01 4.4.0-96-generic #119-Ubuntu SMP Tue Sep 12 14:59:54 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux