The A deme had a size of 1256 until 8775.532 generations ago. From 8775.532 generations to time 4165.7456, its size changed exponentially to 3934 individuals. After that, until 3719.89, the population had a exponential change to 1127 individuals. It then grew from 1127 to 5618, starting 3719.89 generations ago, until current times, at a exponential rate.
time_units: generations
demes:
  - name: A
    start_time: .inf
    epochs:
      - start_size: 1256
        end_time: 8775.532
      - start_size: 1256
        end_size: 3934
        end_time: 4165.7456
        size_function: exponential
      - start_size: 3934
        end_time: 3719.89
        end_size: 1127
        size_function: exponential
      - end_time: 0
        start_size: 1127
        end_size: 5618
        size_function: exponential