_assert_columns_exist

Internal helper

This page documents an internal implementation helper, not a primary public API.

Source code in src/fabricops_kit/technical_columns.py

def _assert_columns_exist(df: Any, columns: list[str]) -> None:
    missing = [c for c in columns if c not in df.columns]
    if missing:
        raise ValueError(f"Missing required columns: {missing}")