tests/data/valid/toml-lang-compliance/valid/array/spec-array-3.json

{"nested_array_of_int":
  {"type":"array","value":[
    {"type":"array","value":[
      {"type":"integer","value":"1"},
      {"type":"integer","value":"2"}]},
    {"type":"array","value":[
      {"type":"integer","value":"3"},
      {"type":"integer","value":"4"},
      {"type":"integer","value":"5"}]}]}}