how to overide command-line args?

[seoha-kim]

i usually use yacs with config file as below:
python3 run.py --cfg /home/plask/seoha/kubeflow/metrabs/configs/aist_only_hrnet_new_aug_all.yaml

eg.
TRAIN:
AUGMENT : true
OPTIM: "ranger"
LR: 0.0001
BACKBONE_TRAIN: true
BATCH_SIZE : 16
OCCLUDE_AUGMENT : false
NUM_STEPS_START_ABS : 10000000

but i wand to override some args like

python3 run.py --cfg /home/plask/seoha/kubeflow/metrabs/configs/aist_only_hrnet_new_aug_all.yaml --train-optim "adam" --train-lr 1e-4

i have to override with command-line(not modifying yaml file)
how can i do this?