According to this document [https://msdn.microsoft.com/en-us/microsoft-teams/botsmessages#action---invoke-new] we can use invoke in Hero card button but it giving me below error "ActionTypes does not contain a definition for invoke
Um using Microsoft.Bot.Builder 3.2.1
Can someone help me
The Invoke action exists, but it is reserved for internal use.
Your bot may receive an invoke activity that represents a request for it to perform a specific operation. The sender of an invoke activity typically expects the bot to acknowledge receipt via HTTP response. This activity type is reserved for internal use by the Microsoft Bot Framework.
