Deme T had an initial size of 9192 until 9220.462 generations ago. At that time, its population size changed to 2871, and has remained there till current time.
time_units: generations
demes:
  - name: T
    start_time: .inf
    epochs:
      - start_size: 9192
        end_time: 9220.462
      - start_size: 2871
        end_time: 0