{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "Adaptive Card payload (compat, no pattern/patternProperties)",
    "type": "object",
    "required": [
        "type",
        "version",
        "body"
    ],
    "properties": {
        "type": {
            "type": "string"
        },
        "version": {
            "type": "string"
        },
        "$schema": {
            "type": "string"
        },
        "body": {
            "type": "array",
            "items": {
                "type": "object",
                "required": [
                    "type"
                ],
                "properties": {
                    "type": {
                        "type": "string"
                    },
                    "text": {
                        "type": "string"
                    }
                },
                "additionalProperties": true
            }
        },
        "actions": {
            "type": "array",
            "items": {
                "type": "object"
            }
        }
    },
    "additionalProperties": true
}