{"task": {"agent_timeout": 600, "task": "python-16", "verifier_timeout": 600, "instruction": "Please fix the function in Python__16.py such that all test cases pass.\nEnvironment has been set up for you to start working. You may assume all necessary tools are installed.\n\n# Problem Statement\ndef count_distinct_characters(string: str) -> int:\n    return len(set(string))\n\n\n\n\n\n\ndef check(count_distinct_characters):\n    assert count_distinct_characters('') == 0\n    assert count_distinct_characters('abcde') == 5\n    assert count_distinct_characters('abcde' + 'cade' + 'CADE') == 5\n    assert count_distinct_characters('aaaaAAAAaaaa') == 1\n    assert count_distinct_characters('Jerry jERRY JeRRRY') == 5\n\ncheck(count_distinct_characters)\n\nIMPORTANT: You should ONLY interact with the environment provided to you AND NEVER ASK FOR HUMAN HELP.\nYou should NOT modify any existing test case files. If needed, you can add new test cases in a NEW file to reproduce the issue.\nYou SHOULD INCLUDE PROPER INDENTATION in your edit commands.\nWhen you think you have fixed the issue through code changes, please finish the interaction using the \"finish\" tool.\n\n", "memory": "2g", "runnable": false, "difficulty": "medium", "language": "", "cpus": 1, "instruction_truncated": false, "category": "debugging", "compose": false, "has_solution": true, "oracle": null, "docker_image": "", "taskset": "humanevalfix", "tags": ["debugging", "humanevalfix", "code-fixing"]}, "runs": []}