{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "Gives an output's source ID",
    "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$",
    "title": "Output source ID resource",
    "type": [
        "string",
        "null"
    ]
}