{
  "context": "This criteria evaluates the engineer's proficiency in using aioredis for publish-subscribe messaging. It assesses proper usage of the PubSub API including creating pub/sub clients, subscribing to channels and patterns, publishing messages, receiving messages, and unsubscribing.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "PubSub client creation",
      "description": "Creates and properly initializes aioredis PubSub client(s) or uses aioredis.Redis.pubsub() to obtain a PubSub instance for subscribing operations",
      "max_score": 15
    },
    {
      "name": "Redis client for publishing",
      "description": "Creates aioredis.Redis client instance for publishing messages using the publish() method",
      "max_score": 10
    },
    {
      "name": "Channel subscription",
      "description": "Uses PubSub.subscribe() method correctly to subscribe to specific channels",
      "max_score": 15
    },
    {
      "name": "Pattern subscription",
      "description": "Uses PubSub.psubscribe() method correctly to subscribe to channel patterns with wildcard matching",
      "max_score": 15
    },
    {
      "name": "Message publishing",
      "description": "Uses Redis.publish() method to send messages to channels and correctly handles the return value (number of subscribers)",
      "max_score": 15
    },
    {
      "name": "Message retrieval",
      "description": "Uses PubSub.get_message() method with appropriate timeout parameter to receive messages from subscribed channels",
      "max_score": 15
    },
    {
      "name": "Unsubscribe functionality",
      "description": "Uses PubSub.unsubscribe() method to unsubscribe from specific channels",
      "max_score": 10
    },
    {
      "name": "Async connection lifecycle",
      "description": "Properly manages async connection lifecycle using await with connection creation and cleanup methods (close(), quit(), or context managers)",
      "max_score": 5
    }
  ]
}