daft.functions.last_day#

def last_day(expr: Expression) -> Expression:
    """Returns the last day of the month for the given date or timestamp.

    Args:
        expr: a Date or Timestamp expression.

    Returns:
        Expression: a Date expression representing the last day of that month.

    Examples:
        >>> import daft
        >>> from daft.functions import last_day
        >>> last_day(daft.col("dt"))
        last_day(col(dt))
    """
    expr = Expression._to_expression(expr)
    return Expression._call_builtin_scalar_fn("last_day", expr)