{
  "$id": "document.schema.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "document",
  "type": "object",
  "required": [],
  "properties": {
    "source": {
      "type": "string",
      "description": "Document URI"
    },
    "format": {
      "$ref": "codec.schema.json"
    },
    "requires": {
      "$ref": "dependencies.schema.json"
    },
    "imports": {
      "type": "array",
      "description": "List of other documents to import",
      "items": {
        "type": "string",
        "description": "Document URI"
      }
    },
    "configurations": {
      "type": "array",
      "description": "Configurations list",
      "items": {
        "oneOf": [
          { "$ref": "config/block.schema.json" }
        ]
      }
    },
    "resources": {
      "type": "array",
      "description": "Resources list",
      "items": {
        "oneOf": [
          { "$ref": "foo-declaration.schema.json" },
          { "$ref": "bar-declaration.schema.json" }
        ]
      }
    }
  }
}