For the N deme, the population size remained at 4925 until 9080.8 generations ago, at which point a linear reduction took place until 6287.6 generations for size 2869. Afterward, the population saw an linear increase to 9267 by 3429.322. From 3429.322 generations ago to today, there's been a linear change from 9267 to 2758.
time_units: generations
demes:
  - name: N
    start_time: .inf
    epochs:
      - start_size: 4925
        end_time: 9080.8
      - start_size: 4925
        end_size: 2869
        end_time: 6287.6
        size_function: linear
      - start_size: 2869
        end_time: 3429.322
        end_size: 9267
        size_function: linear
      - end_time: 0
        start_size: 9267
        end_size: 2758
        size_function: linear