I want to get the next JSON format:
And I get this format for the time:
In fact, the difference is in the  in the produit_id1 because there is only one message so the work considers this is not a list and not add the hook.
In the second example there is no problem, there many message for a product if I am an aggregate and work considers a list.
So my problem is how to add the hook  in each product.
This is a screenshot of my work.
Thanks for your help
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