A deme's population was steady at 6193 before it changed to 6786 7480.0 generations ago, maintaining that number to the present.
time_units: generations
demes:
  - name: A
    start_time: .inf
    epochs:
      - start_size: 6193
        end_time: 7480.0
      - start_size: 6786
        end_time: 0