Retrieves logs for a specific workergroup by ID.
CLI Usage: vastai get workergroup logs <id> [--tail <num_lines>]
API key must be provided in the Authorization header
Logs successfully retrieved.
The workergroup logs
"2023-10-01 12:00:00 - Workergroup started\n2023-10-01 12:01:00 - Instance scaled up"