{
  "@context": {
    "@vocab": "https://schema.org/",
    "gfit": "https://www.googleapis.com/fitness/v1/",
    "Session": "schema:ExerciseAction",
    "DataSource": "gfit:DataSource",
    "DataPoint": "gfit:DataPoint",
    "id": "schema:identifier",
    "name": "schema:name",
    "description": "schema:description",
    "startTimeMillis": {
      "@id": "schema:startTime",
      "@type": "schema:DateTime"
    },
    "endTimeMillis": {
      "@id": "schema:endTime",
      "@type": "schema:DateTime"
    },
    "activityType": "schema:exerciseType",
    "activeTimeMillis": "schema:duration",
    "application": "schema:softwareApplication",
    "device": "schema:device",
    "manufacturer": "schema:manufacturer",
    "model": "schema:model"
  }
}