The number of individuals in deme L remained at 2829 until 812.448 generations ago, at which time it changed to a new stable size of 8222.
time_units: generations
demes:
  - name: L
    start_time: .inf
    epochs:
      - start_size: 2829
        end_time: 812.448
      - start_size: 8222
        end_time: 0