How to add extensions in info section?

[VIVALXH]

The extensions currently added seem to be added only under the json root path, such as "@x-example example" above main func.

Is there any way to add extensions in the info section？
egg:

{
    "swagger": "2.0",
    "info": {
        "description": "This is a sample server Petstore server.",
        "title": "Swagger Example API",
        "termsOfService": "http://swagger.io/terms/",
        "contact": {
            "name": "API Support",
            "url": "http://www.swagger.io/support",
            "email": "[email protected]"
        },
        "license": {
            "name": "Apache 2.0",
            "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
        },
        "version": "1.0",
        "x-example": "example"
    },
    "host": "localhost:8080",
    "basePath": "/v2",
}

[themakarrony]

I would also be interested in this. But it seems it has not been implemented