{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Schema for my building block",
  "type": "object",
  "properties": {
    "a": {
      "type": "string",
      "format": "uri",
      "x-jsonld-id": "https://example.org/my-bb-model/a",
      "x-jsonld-type": "@id"
    },
    "b": {
      "type": "number",
      "x-jsonld-id": "https://example.org/my-bb-model/b"
    }
  },
  "required": [
    "a",
    "b"
  ]
}