Amend this YAML specification so it includes a simple transform state that will add 20 years to the current_age value and progress to the next state.

For information about transforms, see /reference/workflows-tickets/states-and-transitions/#states.

Add the transform properties to add_20_years and give it a name and description.

Use the transform properties to add 20 years to the current_age value provided by the start state.

The Workflow will then:

Put the new value under the context key new_age

Progress to the next state, making sure the new key is also passed to the next state