{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "additionalProperties": false,
  "required": [ "$let", "in" ],
  "properties": {
    "$let": {
      "type": "object",
      "additionalProperties": false,
      "required": [ "x" ],
      "properties": {
        "x": {
          "type": "array",
          "items": {
            "type": "integer",
            "minimum": 0,
            "multipleOf": 10
          }
        }
      }
    },
    "in": {
      "type": "object",
      "additionalProperties": false,
      "required": [ "$reverse" ],
      "properties": {
        "$reverse": {
          "type": "object",
          "additionalProperties": false,
          "required": [ "$sort", "by(x)" ],
          "properties": {
            "$sort": {
              "type": "object",
              "additionalProperties": false,
              "required": [ "$eval" ],
              "properties": {
                "$eval": {
                  "type": "string"
                }
              }
            },
            "by(x)": {
              "type": "string"
            }
          }
        }
      }
    }
  }
}