The number of individuals in deme T remained at 6539 until 7044.0 generations ago, at which time it reduced to a new stable size of 724.
time_units: generations
demes:
  - name: T
    start_time: .inf
    epochs:
      - start_size: 6539
        end_time: 7044.0
      - start_size: 724
        end_time: 0