def METHOD_NAME(datacube_polar):
    """
    This function will take in a datacube of polar-transformed diffraction patterns, and
    do the autocorrelation, before taking the fourier transform along the theta
    direction, such that symmetries can be measured. They will be plotted by a different
    function
    Args:
        datacube_polar: diffraction pattern cube that has been polar transformed
    Returns:
        the normalized fft along the theta direction of the autocorrelated patterns in
        datacube_polar
    """
    return datacube_symmetries