{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://sneak.berlin/go/neoirc/schema/commands/PING.json",
  "title": "PING",
  "description": "A check that the server still answers. A client sends it. The server ignores every field but 'command'. Its answer is a PONG in the HTTP response. RFC 1459 §4.6.2.",
  "$ref": "../message.json",
  "properties": {
    "command": { "const": "PING" }
  },
  "required": ["command"],
  "examples": [
    { "command": "PING" }
  ]
}