def smooth_high_resolution_connectome(high_resolution_connectome, smoothing_kernel):
    """
    Perform CSS to smooth a high-resolution connectome.

    Args:

        high_resolution_connectome: The high-resolution structural connectome (59412 x 59412 sparse CSR matrix)

        smoothing_kernel: The v x v CSS high-resolution smoothing kernel

    Returns:

        smoothed_high_resolution_connectome: The CSS smoothed connectome.
    """
    return smoothing_kernel.dot(high_resolution_connectome.dot(smoothing_kernel.T))