{
  "context": "This criteria evaluates how effectively the engineer uses the python-us package's FIPS code lookup functionality to validate state codes and retrieve state information. The focus is on correct usage of the package's lookup API with FIPS codes.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "FIPS lookup usage",
      "description": "Uses the us.states.lookup() function to look up states by FIPS code",
      "max_score": 40
    },
    {
      "name": "State object attributes",
      "description": "Correctly accesses the 'name' and 'abbr' attributes from State objects returned by lookup()",
      "max_score": 25
    },
    {
      "name": "FIPS code handling",
      "description": "Correctly passes FIPS codes as strings to lookup() and accesses the 'fips' attribute from State objects",
      "max_score": 20
    },
    {
      "name": "Territory support",
      "description": "Solution works for both states and territories (lookup handles both by default)",
      "max_score": 10
    },
    {
      "name": "Invalid code handling",
      "description": "Properly handles None return values from lookup() when FIPS codes are invalid",
      "max_score": 5
    }
  ]
}