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

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [],
  "additionalProperties": false,
  "properties": {
    "id": {
      "type": "pubkey",
      "description": "if supplied, limits the result to just the peer with the given ID, if it exists"
    },
    "level": {
      "type": "string",
      "description": "supplying level will show log entries related to that peer at the given log level",
      "enum": [
        "io",
        "debug",
        "info",
        "unusual"
      ]
    }
  }
}