The number of individuals in deme H remained at 8528 until 7351.326 generations ago, at which time it changed to a new stable size of 8909.
time_units: generations
demes:
  - name: H
    start_time: .inf
    epochs:
      - start_size: 8528
        end_time: 7351.326
      - start_size: 8909
        end_time: 0