[Feature Request] Sample of an activity calling a client to schedule or update a workflow

Is your feature request related to a problem? Please describe.

I would love to have a sample that shows how to do workflow->workflow interaction with a client, so : workflow->activity->client->workflow interaction

This is a common discussion with customers and a sample in go and python would be amazing to share with them.

Describe the solution you'd like

A sample that shows how to do a client inside a workflow's activity. Ideally it would start a schedule.

Our docs say it is a good option, and I want to point them in that direction:

Additional context

Überprüfe zuerst die vorhandenen Python-Beispiele und den dokumentierten workflow-to-activity-to-client-Interaktionsablauf. Füge ein Beispiel hinzu, das eine activity zeigt, die einen client verwendet, um mit einem anderen workflow zu interagieren, idealerweise durch das Starten eines schedule, und stelle sicher, dass das Beispiel die angeforderte Interaktion klar demonstriert.