hyperion.ng/libsrc/jsonserver/schema/schema-sourceselect.json

{
    "type":"object",
    "required":false,
    "properties":{
        "command": {
            "type" : "string",
            "required" : true,
            "enum" : ["sourceselect"]
        },
        "priority": {
            "type": "integer"
        },
        "auto": {
            "type": "boolean"
        }
     },
    "additionalProperties": false
}