array(2) {
  ["data"]=>
  NULL
  ["error"]=>
  array(4) {
    ["status"]=>
    int(400)
    ["name"]=>
    string(15) "ValidationError"
    ["message"]=>
    string(16) "Invalid key slot"
    ["details"]=>
    array(4) {
      ["key"]=>
      string(4) "slot"
      ["path"]=>
      NULL
      ["source"]=>
      string(5) "query"
      ["param"]=>
      string(8) "populate"
    }
  }
}