introduction to pytorch in [ ] out[ ]tensor([[[ ][ ][ ]][[ ][ ][ ]]]in [ ] shape out[ ]torch size([ ]in [ ] torch stack([ , , ] in [ ] out[ ]tensor([[[ ]][[ ]]]in [ ] shape out[ ]torch size([ ]the chunk operation chops up tensor into the given number of parts along given direction note that the first parameter is the tensorthe second parameter is the number of partsand the third parameter is the direction along which to partition listing - demonstrates chunking tensors listing - chunking tensors in [ ] torch zeros( in [ ] out[ ]