[{"collection":"collection","count":1,"content":{"arr":{"type":"array","arrayContent":{"type":"object","objectContent":{"field_1":{"type":"string","minLength":1,"maxLength":1},"field_2":{"type":"array","arrayContent":{"type":"string","minLength":1,"maxLength":1},"minLength":3,"maxLength":3}}},"minLength":3,"maxLength":3}},"indexes":[{"name":"ix","key":{"arr.field_1":1,"arr.field_2":1}}]}]

db.collection.find({})