introduction to pytorch tensor([[[ ][ ]]]in [ ] shape out[ ]torch size([ ]in [ ] torch unsqueeze( in [ ] out[ ]tensor([[[ ]][[ ]]]in [ ] shape out[ ]torch size([ ]in [ ] torch unsqueeze( in [ ] out[ ]tensor([[[ ][ ]][[ ][ ]]]in [ ] shape out[ ]torch size([ ]the unbind function breaks up given tensor into separate tensors along given dimension listing - illustrates extracting parts of tensor using unbind tensor is broken along the first and second dimension note that the resultant tensors are returned as tuple