t :: %ExMicrosoftBot.Models.Activity{action: String.t, attachmentLayout: String.t, attachments: [ExMicrosoftBot.Models.Attachment.t], channelData: map, channelId: String.t, conversation: ExMicrosoftBot.Models.ConversationAccount.t, entities: [ExMicrosoftBot.Models.Entity.t], from: ExMicrosoftBot.Models.ChannelAccount.t, historyDisclosed: boolean, id: String.t, locale: String.t, membersAdded: [ExMicrosoftBot.Models.ChannelAccount.t], membersRemoved: [ExMicrosoftBot.Models.ChannelAccount.t], recipient: ExMicrosoftBot.Models.ChannelAccount.t, replyToId: String.t, serviceUrl: String.t, summary: String.t, text: String.t, textFormat: String.t, timestamp: String.t, topicName: String.t, type: String.t}