How to organize sending to all users who wrote in the personal of the VKontakte group?

Question

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How to organize sending to all users who wrote (subscribed to messages from the group).
The meaning of this function is to notify users about the start of the stream on the twitch service.
It would be great if an example on the vk-io library

Answer 1

In lib you include execute, in a cycle you throw messages into the queue in the messages.send method, specifying 100 user_ids each.

Answer 2

Are you asking how, having a list of identifiers, send messages to them?