easiest way is to follow these instructions for pytorch specifically
gcloud config set project spak-hacks
export INSTANCE_NAME="denoiser-test-eu"
export MACHINE_TYPE="n1-standard-4"
export VM_IMAGE_FAMILY="pytorch-1-9-cu110-notebooks"
export VM_IMAGE_PROJECT="deeplearning-platform-release"
gcloud notebooks instances create $INSTANCE_NAME \
--vm-image-project=$VM_IMAGE_PROJECT \
--vm-image-family=$VM_IMAGE_FAMILY \
--machine-type=$MACHINE_TYPE --location=$LOCATION
then visit here to see the freshly created notebook