description: Example setting pulse properties using defaults
time_units: generations

defaults:
  pulse: {proportions: [0.5], time: 1}
  epoch: {start_size: 1}

demes: [{name: deme0}, {name: deme1}, {name: deme2}]

pulses:
- {dest: deme1, sources: [deme0]}
- {dest: deme2, sources: [deme1]}