"""Transaction utilities."""

import decimal
from decimal import Decimal

_TWO_DECIMAL_PLACES = Decimal("1.00")


def round_amount(amount: Decimal) -> Decimal:
    """Round a transfer amount to two decimal places.

    Args:
        amount (Decimal): Value to round.

    Returns:
        Decimal: The rounded value.
    """
    return amount.quantize(_TWO_DECIMAL_PLACES, decimal.ROUND_HALF_EVEN)