Convert an array to an object

WITH doc AS ({ "myobj": [ { "1": { "f1": "a", "f2": "b" } }, { "14": { "f1": "x", "f2": "y" } } ] })
SELECT OBJECT o.name:o.val 
       FOR o IN (SELECT RAW u2 
                 FROM d.myobj AS u1 
                 UNNEST OBJECT_PAIRS(u1) AS u2) 
       END AS myobj
FROM doc AS d;