{
  "context": "This evaluation assesses how effectively the engineer uses the jsons library to serialize and deserialize Python classes that use __slots__ for memory optimization. The focus is on correct usage of jsons.dump() and jsons.load() functions with slotted classes, including handling of nested slotted objects.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Slotted Classes Definition",
      "description": "All three classes (ServerConfig, DatabaseConfig, ApplicationConfig) correctly define __slots__ with the specified attributes and implement __init__ methods to initialize those attributes.",
      "max_score": 15
    },
    {
      "name": "jsons.dump() Usage",
      "description": "Uses jsons.dump() function to serialize slotted class instances to dictionaries. Should be used for all three classes (ServerConfig, DatabaseConfig, ApplicationConfig).",
      "max_score": 20
    },
    {
      "name": "jsons.load() Usage",
      "description": "Uses jsons.load() function with the target class type to deserialize dictionaries back into slotted class instances. Should be used for all three classes.",
      "max_score": 20
    },
    {
      "name": "Nested Slotted Objects",
      "description": "Correctly handles serialization and deserialization of nested slotted objects (ApplicationConfig containing ServerConfig and DatabaseConfig instances). The jsons library should automatically handle the nested structure without manual intervention.",
      "max_score": 25
    },
    {
      "name": "Type Hints",
      "description": "Includes appropriate type hints on __init__ methods or class-level annotations to enable jsons to properly deserialize nested slotted objects (e.g., server: ServerConfig, database: DatabaseConfig).",
      "max_score": 15
    },
    {
      "name": "Test Implementation",
      "description": "All six test cases are implemented and correctly verify serialization and deserialization behavior for all three slotted classes, including nested objects.",
      "max_score": 5
    }
  ]
}