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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def slice(objects, position, axis, precision=1e-3, layer=0, datatype=0):
 """ Slice polygons and polygon sets at given positions along an axis. Parameters objects : ``PolygonSet``, or list Operand of the slice operation. If this is a list, each element must be a ``PolygonSet``, ``CellReference``, ``CellArray``, or an array-like[N][2] of vertices of a polygon. position : number or list of numbers Positions to perform the slicing operation along the specified axis. axis : 0 or 1 Axis along which the polygon will be sliced. precision : float Desired precision for rounding vertice coordinates. layer : integer, list The GDSII layer numbers for the elements between each division. If the number of layers in the list is less than the number of divided regions, the list is repeated. datatype : integer The GDSII datatype for the resulting element (between 0 and 255). Returns ------- out : list[N] of PolygonSet Result of the slicing operation, with N = len(positions) + 1. Each PolygonSet comprises all polygons between 2 adjacent slicing positions, in crescent order. Examples -------- """

    if not isinstance(layer, list):
        layer = [layer]
    if not isinstance(objects, list):
        objects = [objects]
    if not isinstance(position, list):
        pos = [position]
    else:
        pos = sorted(position)
    result = [[] for _ in range(len(pos) + 1)]
    polygons = []
    for obj in objects:
        if isinstance(obj, PolygonSet):
            polygons.extend(obj.polygons)
        elif isinstance(obj, CellReference) or isinstance(obj, CellArray):
            polygons.extend(obj.get_polygons())
        else:
            polygons.append(obj)
    scaling = 1 / precision
    for pol in polygons:
        for r, p in zip(result, clipper._chop(pol, pos, axis, scaling)):
            r.extend(p)
    for i in range(len(result)):
        result[i] = PolygonSet(result[i], layer[i % len(layer)], datatype)
    return result