{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "shape_ids": {
      "type": "array",
      "items": {
        "type": "integer"
      }
    },
    "edges": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "shape_id": {
            "type": "integer"
          },
          "edge_ids": {
            "type": "array",
            "items": {
              "type": "integer"
            }
          }
        }
      }
    },
    "internal_lines": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "shape_id": {
            "type": "integer"
          },
          "internal_line_ids": {
            "type": "array",
            "items": {
              "type": "integer"
            }
          }
        }
      }
    },
    "attachments": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "shape_id": {
            "type": "integer"
          },
          "attachment_ids": {
            "type": "array",
            "items": {
              "type": "integer"
            }
          }
        }
      }
    }
  }
}