{
  "type": "object",
  "required": ["type"],
  "properties": {
    "line_code": { "type": ["string", "null"] },
    "type": { "type": ["string", "null"] },
    "old_line": { "type": ["integer", "null"] },
    "new_line": { "type": ["integer", "null"] },
    "text": { "type": ["string"] },
    "rich_text": { "type": ["string"] },
    "meta_data": { "type": ["object", "null"] },
    "can_receive_suggestion": { "type": "boolean" }
  },
  "additionalProperties": false
}