{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "definitions": {
        "envelope": {
            "additionalProperties": false,
            "description": "A versioned envelope.",
            "properties": {
                "data": {
                    "description": "The payload."
                },
                "schema_id": {
                    "description": "The value of the '$id' property of the schema that constraints this JSON document.",
                    "minLength": 1,
                    "type": "string"
                }
            },
            "required": [
                "data",
                "schema_id"
            ],
            "type": "object"
        },
        "arch": {
            "description": "Supported CPU architecture",
            "enum": [
                "arm64",
                "x64"
            ]
        },
        "os": {
            "description": "Supported operating system",
            "enum": [
                "linux",
                "mac"
            ]
        }
    },
    "description": "Schema definitions widely share across many different schemata.",
    "id": "https://fuchsia.dev/schema/common-00000000.json"
}