The deme of M kept its population at 2303 until 9815.975 generations ago, when a linear change ensued until 6508.289, to size 6508. Subsequently, a exponential change changed the numbers to 9301 individuals by 4245.14. Starting from 4245.14, the population has seen a reduction from 9301 to 696 at a linear pace, continuing to this day.
time_units: generations
demes:
  - name: M
    start_time: .inf
    epochs:
      - start_size: 2303
        end_time: 9815.975
      - start_size: 2303
        end_size: 6508
        end_time: 6508.289
        size_function: linear
      - start_size: 6508
        end_time: 4245.14
        end_size: 9301
        size_function: exponential
      - end_time: 0
        start_size: 9301
        end_size: 696
        size_function: linear