{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [],
  "additionalProperties": false,
  "properties": {
    "spent": {
      "type": "boolean",
      "description": "if True, then the *outputs* will include spent outputs in addition to the unspent ones. Default is False"
    }
  }
}