There's no point in doing this, the requirement doesn't make any sense.
A board is not a container for issues, it's a view of a selection of issues. You don't create issues in a board, and issues don't have a "field" that says what boards they currently appear on. Note the plural there - what boardS does the issue appear on after it is created? Which of them would determine the team?
You should be looking at other data to determine what team the issue belongs to (not assigned to, as the assignee is the single person currently responsible for the issue)
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