When receiving data about a message, it is not possible to pull out the data?

Question

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I apologize in advance for the title.
So. When requesting message.attachments, it gives me this data:

I need to get WallAttachment or id, ownerId.
I can't get something

Answer 1

const [wall] = message.getAttachments('wall');

wall.id // => number
wall.ownerId // => number

Answer 2

message.attachment.ownerId e.g.
I assume you are using the vk-io library and therefore you can look at the documentation

documentation