core-lightning/doc/schemas/sendpsbt.request.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "psbt"
  ],
  "properties": {
    "psbt": {
      "type": "string"
    },
    "reserve": {
      "type": "boolean"
    }
  }
}