Deme E had an initial size of 6463 until 6182.91 generations ago. At that time, its population size reduced to 399, and has remained there till current time.
time_units: generations
demes:
  - name: E
    start_time: .inf
    epochs:
      - start_size: 6463
        end_time: 6182.91
      - start_size: 399
        end_time: 0