Service Templates
In the Templates page you get an overview of all AYS service templates available in the Cockpit:

Here you can filter on the name of the repository where the template is available, or on the name of the service template:

Clicking the name of the service template leads you to the service Template Details page:

Under schema.hrd you see the attributes for describing a service instance of the service template type:

Under actions.py you see the implementation of all actions available for service instances of the service template type.
Here for the VDC service template for actions are implemented:
init()

install()

uninstall()

getClient()

At the bottom of the page there is an overview of all service instances based on this service template: