https://docs.cloud.google.com/php/docs/reference/cloud-dialogflow/latest/V2.CesAppSpec
Google Cloud Dialogflow V2 Client - Class CesAppSpec (2.4.0) | PHP client libraries | Google Cloud...
google cloud
https://docs.cloud.google.com/dotnet/docs/reference/Google.Cloud.Dialogflow.V2/latest/Google.Cloud.Dialogflow.V2.CesAppSpec
Google Cloud Dialogflow v2 API - Class CesAppSpec (4.29.0) | .NET client libraries | Google Cloud...
https://docs.cloud.google.com/java/docs/reference/google-cloud-dialogflow/latest/com.google.cloud.dialogflow.v2beta1.CesAppSpec.Builder
Class CesAppSpec.Builder (4.97.0) | Java client libraries | Google Cloud Documentation