4,3
          Array
(
    [0] => Array
        (
            [id] => 4
        )

    [1] => Array
        (
            [id] => 3
        )

)
          
          
    Array
(
    [email] => cornerstone@nettbrygga.com
    [firstname] => cornerstone
    [lastname] => BHG
    [courses] => Array
        (
            [0] => Array
                (
                    [id] => 4
                )

            [1] => Array
                (
                    [id] => 3
                )

        )

)
  
Array
(
    [email] => test2@test.com
    [firstname] => QhVPfigXUdSWONeRcT wvxuzysAtBDC
    [lastname] => dfOXiPehUcRVWgQNST CyAwuDstvzBx
    [courses] => Array
        (
            [0] => Array
                (
                    [id] => 1
                )

            [1] => Array
                (
                    [id] => 2
                )

            [2] => Array
                (
                    [id] => 3
                )

        )

)