{
  "@context": {
    "@version": 1.1,
    "@vocab": "https://api.att.com/vocab/",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "grant_type": "https://api.att.com/vocab/grant_type",
    "client_id": "https://api.att.com/vocab/client_id",
    "client_secret": "https://api.att.com/vocab/client_secret",
    "scope": "https://api.att.com/vocab/scope",
    "code": "https://api.att.com/vocab/code",
    "refresh_token": "https://api.att.com/vocab/refresh_token",
    "access_token": "https://api.att.com/vocab/access_token",
    "token_type": "https://api.att.com/vocab/token_type",
    "expires_in": {
      "@id": "https://api.att.com/vocab/expires_in",
      "@type": "xsd:integer"
    },
    "outboundSMSRequest": "https://api.att.com/vocab/outboundSMSRequest",
    "outboundSMSResponse": "https://api.att.com/vocab/outboundSMSResponse",
    "address": "https://api.att.com/vocab/address",
    "deliveryStatus": "https://api.att.com/vocab/deliveryStatus",
    "messageId": "https://api.att.com/vocab/messageId",
    "message": "https://api.att.com/vocab/message",
    "senderAddress": "https://api.att.com/vocab/senderAddress",
    "destinationAddress": "https://api.att.com/vocab/destinationAddress",
    "dateTime": {
      "@id": "https://api.att.com/vocab/dateTime",
      "@type": "xsd:dateTime"
    }
  }
}