item and optionally sample namespaces.{
"type": "custom",
"schema": "{\n \"type\": \"object\",\n \"properties\": {\n \"item\": {\n \"type\": \"object\",\n \"properties\": {\n \"label\": {\"type\": \"string\"},\n },\n \"required\": [\"label\"]\n }\n },\n \"required\": [\"item\"]\n}\n"
}