{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "allOf": [
        {
            "$schema": "http://json-schema.org/draft-04/schema#",
            "description": "Base protocol message structure",
            "properties": {
                "messageType": {
                    "description": "Protocol message type",
                    "enum": [
                        0,
                        1,
                        2,
                        3,
                        4,
                        5
                    ],
                    "type": "integer"
                }
            },
            "required": [
                "messageType"
            ],
            "title": "Base protocol message",
            "type": "object"
        },
        {
            "properties": {
                "errorMessage": {
                    "description": "Error details associated with the failure",
                    "type": "string"
                },
                "messageType": {
                    "description": "Protocol message type",
                    "enum": [
                        5
                    ],
                    "type": "integer"
                },
                "status": {
                    "description": "Status of the message response. Must include the numeric values for NcMethodStatus or other types which inherit from it.",
                    "maximum": 65535,
                    "minimum": 0,
                    "type": "integer"
                }
            },
            "required": [
                "status",
                "errorMessage",
                "messageType"
            ],
            "type": "object"
        }
    ],
    "description": "Error protocol message structure - used by devices to return general error messages for example when incoming messages do not have messageType, handles or contain invalid JSON",
    "title": "Error protocol message",
    "type": "object"
}