[
  {
    "namespace": "redundantDefaultAttribute",
    "description": "Invalid schema, due to specifying a redundant attribute value.",
    "functions": [
      {
        "name": "optionalFalse",
        "type": "function",
        "description": "Specifies a returns_async as optional false.",
        "parameters": [
          {
            "type": "any",
            "name": "anyName",
            "optional": true
          }
        ],
        "returns_async": {
          "name": "callback",
          "description": "Note: we mark this as not supporting promises because 'optional' is otherwise ignored and would not cause an error",
          "does_not_support_promises": true,
          "optional": false,
          "parameters": []
        }
      }
    ]
  }
]