time_units: generations
description: test
demes:
- name: d1
  epochs:
  - {start_size: 1000, end_time: 0}
- name: d2
  epochs:
  - {start_size: 1000, end_time: 0}
pulses:
- {sources: [d2], dest: d1, proportions: [0.01], time: 100}