{
  "context": "This criteria evaluates the engineer's proficiency in using pillow-heif's from_bytes() function to create HeifFile objects from raw pixel data and their ability to properly access image properties from these objects.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Uses from_bytes()",
      "description": "Correctly uses the from_bytes() function with mode, size, and data parameters to create HeifFile objects from raw pixel data",
      "max_score": 30
    },
    {
      "name": "Handles RGB mode",
      "description": "Successfully creates HeifFile from RGB mode raw data by passing correct mode string ('RGB') and appropriate byte data to from_bytes()",
      "max_score": 15
    },
    {
      "name": "Handles RGBA mode",
      "description": "Successfully creates HeifFile from RGBA mode raw data by passing correct mode string ('RGBA') and appropriate byte data including alpha channel to from_bytes()",
      "max_score": 15
    },
    {
      "name": "Saves HeifFile bytes",
      "description": "Uses the .save() method with BytesIO or similar to convert HeifFile to bytes format for return",
      "max_score": 15
    },
    {
      "name": "Reads HeifFile bytes",
      "description": "Uses open_heif() or read_heif() function to load HeifFile from bytes data for property extraction",
      "max_score": 10
    },
    {
      "name": "Accesses size property",
      "description": "Correctly accesses the .size property from HeifFile or HeifImage objects to retrieve image dimensions as (width, height) tuple",
      "max_score": 8
    },
    {
      "name": "Accesses mode property",
      "description": "Correctly accesses the .mode property from HeifFile or HeifImage objects to retrieve color mode string",
      "max_score": 7
    }
  ]
}