{
  "type": "object",
  "required": [
    "timerId",
    "startToFireTimeout",
    "decisionTaskCompletedEventId"
  ],
  "properties": {
    "timerId": {
      "allOf": [
        {
          "$ref": "#/components/schemas/TimerId"
        },
        {
          "description": "The unique ID of the timer that was started."
        }
      ]
    },
    "control": {
      "allOf": [
        {
          "$ref": "#/components/schemas/Data"
        },
        {
          "description": "Data attached to the event that can be used by the decider in subsequent workflow tasks."
        }
      ]
    },
    "startToFireTimeout": {
      "allOf": [
        {
          "$ref": "#/components/schemas/DurationInSeconds"
        },
        {
          "description": "<p>The duration of time after which the timer fires.</p> <p>The duration is specified in seconds, an integer greater than or equal to <code>0</code>.</p>"
        }
      ]
    },
    "decisionTaskCompletedEventId": {
      "allOf": [
        {
          "$ref": "#/components/schemas/EventId"
        },
        {
          "description": "The ID of the <code>DecisionTaskCompleted</code> event corresponding to the decision task that resulted in the <code>StartTimer</code> decision for this activity task. This information can be useful for diagnosing problems by tracing back the chain of events leading up to this event."
        }
      ]
    }
  },
  "description": "Provides the details of the <code>TimerStarted</code> event.",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "TimerStartedEventAttributes"
}