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Version 2.1.1.post1114+g7249249
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mpl_toolkits.mplot3d.art3d.poly_collection_2d_to_3d

mpl_toolkits.mplot3d.art3d.poly_collection_2d_to_3d(col, zs=0, zdir='z')

Convert a PolyCollection to a Poly3DCollection object.