D deme's population was steady at 1738 before it grew to 6795 2763.2 generations ago, maintaining that number to the present.
time_units: generations
demes:
  - name: D
    start_time: .inf
    epochs:
      - start_size: 1738
        end_time: 2763.2
      - start_size: 6795
        end_time: 0