message: Schema Change for New Event Grid Events Emitting from Service Bus
  * draft for schema changes
  * Revert "draft for schema changes"
  This reverts commit
  * schema change
  * modify existing swagger
diff: "type": "string"
  }
  }
  + },
  + "ServiceBusActiveMessagesAvailablePeriodicNotificationsEventData": {
  + "description": "Schema of the Data property of an EventGridEvent for a Microsoft.ServiceBus.ActiveMessagesAvailablePeriodicNotifications event.",
  + "type": "object",
  + "properties": {
  + "namespaceName": {
  + "description": "The namespace name of the Microsoft.ServiceBus resource.",
  + "type": "string"
  + },
  + "requestUri": {
  + "description": "The endpoint of the Microsoft.ServiceBus resource.",
  + "type": "string"
  + },
  + "entityType": {
  + "description": "The entity type of the Microsoft.ServiceBus resource. Could be one of 'queue' or 'subscriber'.",
  + "type": "string"
  + },
  + "queueName": {
  + "description": "The name of the Microsoft.ServiceBus queue. If the entity type is of type 'subscriber', then this value will be null.",
  + "type": "string"
  + },
  + "topicName": {
  + "description": "The name of the Microsoft.ServiceBus topic. If the entity type is of type 'queue', then this value will be null.",
  + "type": "string"
  + },
  + "subscriptionName": {
  + "description": "The name of the Microsoft.ServiceBus topic's subscription. If the entity type is of type 'queue', then this value will be null.",
  + "type": "string"
  + }
  + }
  + },
  + "ServiceBusDeadletterMessagesAvailablePeriodicNotificationsEventData": {
  + "description": "Schema of the Data property of an EventGridEvent for a Microsoft.ServiceBus.DeadletterMessagesAvailablePeriodicNotifications event.",
  + "type": "object",
  + "properties": {
  + "namespaceName": {
  + "description": "The namespace name of the Microsoft.ServiceBus resource.",
  + "type": "string"
  + },
  + "requestUri": {
  + "description": "The endpoint of the Microsoft.ServiceBus resource.",
  + "type": "string"
  + },
  + "entityType": {
  + "description": "The entity type of the Microsoft.ServiceBus resource. Could be one of 'queue' or 'subscriber'.",
  + "type": "string"
  + },
  + "queueName": {
  + "description": "The name of the Microsoft.ServiceBus queue. If the entity type is of type 'subscriber', then this value will be null.",
  + "type": "string"
  + },
  + "topicName": {
  + "description": "The name of the Microsoft.ServiceBus topic. If the entity type is of type 'queue', then this value will be null.",
  + "type": "string"
  + },
  + "subscriptionName": {
  + "description": "The name of the Microsoft.ServiceBus topic's subscription. If the entity type is of type 'queue', then this value will be null.",
  + "type": "string"
  + }
  + }
  }
  }
  }
  