if you are trying to get them inside a loop (setting the specific post id you want in your arguments or getting all your posts).
i would create an empty array before the loop then in the loop create a new array inside that array with the post id and push inside that array the meta you want in a key=>value format.
once the loop finish you should be able to get from that array the informations you want.
is that what you was looking for?
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