P deme's population was steady at 3050 before it changed to 8058 7066.7 generations ago, maintaining that number to the present.
time_units: generations
demes:
  - name: P
    start_time: .inf
    epochs:
      - start_size: 3050
        end_time: 7066.7
      - start_size: 8058
        end_time: 0