example from https://tarquin-the-brave.github.io/blog/posts/rust-serde/

example.schema.json

{
    "$schema": "http://json-schema.org/draft-07/schema",
    "$id": "http://example.com/root.json",
    "type": "object",
    "title": "The Root Schema",
    "description": "The root schema is the schema that comprises the entire JSON document.",
    "default": {},
    "required": [
        "checked",
        "dimensions",
        "id",
        "name",
        "price",
        "tags"
    ],
    "properties": {
        "checked": {
            "$id": "#/properties/checked",
            "type": "boolean",
            "title": "The Checked Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": false,
            "examples": [
                false
            ]
        },
        "dimensions": {
            "$id": "#/properties/dimensions",
            "type": "object",
            "title": "The Dimensions Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": {},
            "examples": [
                {
                    "height": 10.0,
                    "width": 5.0
                }
            ],
            "required": [
                "width",
                "height"
            ],
            "properties": {
                "width": {
                    "$id": "#/properties/dimensions/properties/width",
                    "type": "integer",
                    "title": "The Width Schema",
                    "description": "An explanation about the purpose of this instance.",
                    "default": 0,
                    "examples": [
                        5
                    ]
                },
                "height": {
                    "$id": "#/properties/dimensions/properties/height",
                    "type": "integer",
                    "title": "The Height Schema",
                    "description": "An explanation about the purpose of this instance.",
                    "default": 0,
                    "examples": [
                        10
                    ]
                }
            }
        },
        "id": {
            "$id": "#/properties/id",
            "type": "integer",
            "title": "The Id Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": 0,
            "examples": [
                1
            ]
        },
        "name": {
            "$id": "#/properties/name",
            "type": "string",
            "title": "The Name Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": "",
            "examples": [
                "A green door"
            ]
        },
        "price": {
            "$id": "#/properties/price",
            "type": "number",
            "title": "The Price Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": 0,
            "examples": [
                12.5
            ]
        },
        "tags": {
            "$id": "#/properties/tags",
            "type": "array",
            "title": "The Tags Schema",
            "description": "An explanation about the purpose of this instance.",
            "default": [],
            "examples": [
                [
                    "home",
                    "green"
                ]
            ],
            "items": {
                "$id": "#/properties/tags/items",
                "type": "string",
                "title": "The Items Schema",
                "description": "An explanation about the purpose of this instance.",
                "default": "",
                "examples": [
                    "home",
                    "green"
                ]
            }
        }
    }
}