For the T deme, the population size remained at 7214 until 9154.9694 generations ago, at which point a linear change took place until 4847.4851 generations for size 4323. Afterward, the population saw an linear change to 6725 by 4305.64. From 4305.64 generations ago to today, there's been a linear growth from 6725 to 8603.
time_units: generations
demes:
  - name: T
    start_time: .inf
    epochs:
      - start_size: 7214
        end_time: 9154.9694
      - start_size: 7214
        end_size: 4323
        end_time: 4847.4851
        size_function: linear
      - start_size: 4323
        end_time: 4305.64
        end_size: 6725
        size_function: linear
      - end_time: 0
        start_size: 6725
        end_size: 8603
        size_function: linear