I am trying to set a default json body for the following endpoint:

const loginJsonSchema = {
    'type': 'object',
    'properties': {
        'username': {
            'type': 'string',
            'example': 'my_user' // this property is ignored
        },
        'password': {
            'type': 'string',
            'example': 'my_password' // this property is ignored
        },
    },
    'required': ['username', 'password'],
}


const paths = {
    "/auth/login": {
        "post": {
            "tags": [
                "auth"
            ],
            "summary": "Login",
            "description": "",
            "operationId": "auth-login",
            "consumes": [
                "application/json"
            ],
            "parameters": [
                {
                    "name": "Credentials",
                    "in": "body",
                    "description": "Your credentials",
                    "required": true,
                    "schema": {
                        loginJsonSchema
                    }
                }
            ],
            "responses": {
                "200": {
                    "description": "successful operation",
                    "schema": loginSuccessResponseSchema,
                },
            },
        }
    },

Instead of the example values, I get the default body as 'string':

I expected the following default body:

{
  "username": "my_user",
  "password": "my_password"
}