AttributeError: module 'torch' has no attribute 'ops'

This error occurs when trying to access the `ops` module in PyTorch, but it does not exist.

Possible reasons for this error:

1. The PyTorch version being used is outdated and does not contain the `ops` module. Try upgrading to the latest version of PyTorch.

2. The `ops` module is not included in the PyTorch installation. Try reinstalling PyTorch with the `ops` module included.

3. There could be a typo in the code, and the module being referenced may not be the `ops` module. Double-check the code to ensure that the correct module is being referenced.

4. It is possible that the `ops` module has been removed or renamed in a particular version of PyTorch. In this case, consult the PyTorch documentation to find the appropriate replacement or alternative module.