Schema.org AggregateRating

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.org/schemas/aggregate-rating.json",
  "title": "Schema.org AggregateRating",
  "description": "The average rating based on multiple ratings or reviews.",
  "type": "object",
  "required": ["@type", "ratingValue"],
  "properties": {
    "@type": {
      "type": "string",
      "const": "AggregateRating",
      "description": "The Schema.org type."
    },
    "@context": {
      "type": "string",
      "default": "https://schema.org"
    },
    "ratingValue": {
      "oneOf": [
        { "type": "number" },
        { "type": "string" }
      ],
      "description": "The rating for the content."
    },
    "bestRating": {
      "oneOf": [
        { "type": "number" },
        { "type": "string" }
      ],
      "description": "The highest value allowed in this rating system."
    },
    "worstRating": {
      "oneOf": [
        { "type": "number" },
        { "type": "string" }
      ],
      "description": "The lowest value allowed in this rating system."
    },
    "ratingCount": {
      "type": "integer",
      "description": "The count of total number of ratings."
    },
    "reviewCount": {
      "type": "integer",
      "description": "The count of total number of reviews."
    },
    "itemReviewed": {
      "type": "object",
      "description": "The item that is being rated.",
      "properties": {
        "@type": { "type": "string" },
        "name": { "type": "string" }
      }
    }
  }
}