"""
Extract total structural mass
Auto-generated by Atomizer Phase 3 - pyNastran Research Agent

Pattern: generic_extraction
Element Type: General
Result Type: unknown
API: model.<result_type>[subcase]
"""

from pathlib import Path
from typing import Dict, Any
import numpy as np
from pyNastran.op2.op2 import OP2


def extract_generic(op2_file: Path):
    """Generic OP2 extraction - needs customization."""
    from pyNastran.op2.op2 import OP2

    model = OP2()
    model.read_op2(str(op2_file))

    # TODO: Customize extraction based on requirements
    # Available: model.displacements, model.ctetra_stress, etc.
    # Use model.get_op2_stats() to see available results

    return {'result': None}


if __name__ == '__main__':
    # Example usage
    import sys
    if len(sys.argv) > 1:
        op2_file = Path(sys.argv[1])
        result = extract_generic(op2_file)
        print(f"Extraction result: {result}")
    else:
        print("Usage: python {sys.argv[0]} <op2_file>")