How to use the kraken.lib.morph.find_objects function in kraken

def binary_objects(binary: np.array) -> np.array:
    """
    Labels features in an array and segments them into objects.
    """
    labels, _ = morph.label(binary)
    objects = morph.find_objects(labels)
    return objects

def compute_lines(segmentation, scale):
    """Given a line segmentation map, computes a list
    of tuples consisting of 2D slices and masked images."""
    logger.debug('Convert segmentation to lines')
    lobjects = morph.find_objects(segmentation)
    lines = []
    for i, o in enumerate(lobjects):
        if o is None:
            continue
        if sl.dim1(o) < 2*scale or sl.dim0(o) < scale:
            continue
        mask = (segmentation[o] == i+1)
        if np.amax(mask) == 0:
            continue
        result = record()
        result.label = i+1
        result.bounds = o
        result.mask = mask
        lines.append(result)
    return lines