content: {
    "$defs": {
      "Email": {
        "description": "Email describes the electronic mailing details.",
        "properties": {
          "addr": {
            "description": "Electronic mailing address.",
            "title": "Address",
            "type": "string"
          },
          "label": {
            "description": "Identifier for the email.",
            "title": "Label",
            "type": "string"
          },
          "meta": {
            "$ref": "https://gobl.org/draft-0/cbc/meta",
            "description": "Additional fields.",
            "title": "Meta"
          },
          "uuid": {
            "description": "Universally Unique Identifier.",
            "format": "uuid",
            "title": "UUID",
            "type": "string"
          }
        },
        "required": [
          "addr"
        ],
        "type": "object"
      }
    },
    "$id": "https://gobl.org/draft-0/org/email",
    "$ref": "#/$defs/Email",
    "$schema": "https://json-schema.org/draft/2020-12/schema"
  }