def METHOD_NAME(
    self,
    mode: int,
    modal_1: int,
    modal_2: int,
    power: int,
    kinetic_term: bool = False,
) -> complex | None:
    """The integral evaluation method of this basis.
    Args:
        mode: the index of the mode.
        modal_1: the index of the first modal.
        modal_2: the index of the second modal.
        power: the exponent of the coordinate.
        kinetic_term: if this is True, the method should compute the integral of the kinetic
            term of the vibrational Hamiltonian, :math:``d^2/dQ^2``.
    Returns:
        The evaluated integral for the specified coordinate or ``None`` if this integral value
        falls below the threshold.
    Raises:
        ValueError: if an unsupported parameter is supplied.
    """