Conversation.ClearPrivateHistory

This will delete all messages and media in this chat from your Telegram cloud. Your chat partner will still have them.
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Vse soobśeniä i materialy v ětom čate budut udaleny dlä vas iz oblaka Telegram. U vašego sobesednika ostanetsä kopiä.
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Vahvistus, Dec 15, 2018 at 22:43