Warning from torch 1.8.1

[yanvirin]

I get this warning each time when I run parsing:

```/home/yanvirin/.cache/pypoetry/virtualenvs/project-vignette-tzfHUOlI-py3.8/lib/python3.8/site-packages/torch/distributions/distribution.py:44: UserWarning: <class 'torch_struct.distributions.TreeCRF'> does not define arg_constraints. Please set arg_constraints = {} or initialize the distribution with validate_args=False to turn off validation. warnings.warn(f'{self.class} does not define arg_constraints. ' +

It seems like the parser is working fine still.
Is that something I can ignore?

[nikitakit]

As far as I can tell, this is an issue with pytorch-struct (https://github.com/harvardnlp/pytorch-struct), and I don't see any way to suppress the warning from the benepar side. The warning is harmless, though.

[badvision]

I used this to silence the warnings from torch: torch_struct.distributions.TreeCRF.arg_constraints = {}