Originally, deme E had a population size of 303, which increased to 3845 around 3853.0 generations ago and has not changed since.
time_units: generations
demes:
  - name: E
    start_time: .inf
    epochs:
      - start_size: 303
        end_time: 3853.0
      - start_size: 3845
        end_time: 0