{"type":"object","additionalProperties":false,
 "properties":{
  "lessons_added":{"type":"integer"},
  "lessons_updated":{"type":"integer"},
  "proposed_upgrades":{"type":"integer"},
  "staging_sha":{"type":"string"},
  "summary":{"type":"string"}},
 "required":["lessons_added","lessons_updated","proposed_upgrades","staging_sha","summary"]}