[
{"id": 8,
 "int_array": [-1],
 "int_array_array": [[-1,-2],[]],
 "int_map": {"k1": -1},
 "int_map_array": [{}, {"k1": 1}, {}, {}],
 "nested_struct": {
   "a": -1,
   "b": [-1],
   "c": {
     "d": [
       [{"e": -1, "f": "nonnullable"}]]},
   "g": {}}}
]