For the L deme, the population size remained at 8722 until 4771.63 generations ago, at which point a linear change took place until 3745.262 generations for size 8417. Afterward, the population saw an linear reduction to 5996 by 2959.65. From 2959.65 generations ago to today, there's been a exponential increase from 5996 to 9071.
time_units: generations
demes:
  - name: L
    start_time: .inf
    epochs:
      - start_size: 8722
        end_time: 4771.63
      - start_size: 8722
        end_size: 8417
        end_time: 3745.262
        size_function: linear
      - start_size: 8417
        end_time: 2959.65
        end_size: 5996
        size_function: linear
      - end_time: 0
        start_size: 5996
        end_size: 9071
        size_function: exponential