Serializing the output

[Veronica Qing Lyu]

Hi there, thanks for putting together this awesome repo!

I'm wondering if it's possible to save the output somewhere on the disk (e.g., with pickle or spacy serialization methods).

For example:

import benepar, spacy

nlp = spacy.load('en_core_web_md')
nlp.add_pipe("benepar", config={"model": "benepar_en3"})

doc = nlp("The time for action is now. It's never too late to do something.")

fwn = "output.spacy"
doc.to_disk(fwn)

would yield the error:

/envs/lib/python3.7/site-packages/torch/distributions/distribution.py:46: 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.
  'with `validate_args=False` to turn off validation.')
Traceback (most recent call last):
  File "/envs/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3552, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-2-acc55f65a9e7>", line 1, in <module>
    runfile('/parsing/serialization.py', wdir='/parsing')
  File "/home//.pycharm_helpers/pydev/_pydev_bundle/pydev_umd.py", line 198, in runfile
    pydev_imports.execfile(filename, global_vars, local_vars)  # execute the script
  File "/home//.pycharm_helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "/parsing/serialization.py", line 15, in <module>
    doc.to_disk(fwn)
  File "spacy/tokens/doc.pyx", line 1270, in spacy.tokens.doc.Doc.to_disk
  File "spacy/tokens/doc.pyx", line 1271, in spacy.tokens.doc.Doc.to_disk
  File "spacy/tokens/doc.pyx", line 1298, in spacy.tokens.doc.Doc.to_bytes
  File "spacy/tokens/doc.pyx", line 1357, in spacy.tokens.doc.Doc.to_dict
  File "/envs/lib/python3.7/site-packages/spacy/util.py", line 1263, in to_dict
    serialized[key] = getter()
  File "spacy/tokens/doc.pyx", line 1354, in spacy.tokens.doc.Doc.to_dict.lambda19
  File "/envs/lib/python3.7/site-packages/srsly/_msgpack_api.py", line 14, in msgpack_dumps
    return msgpack.dumps(data, use_bin_type=True)
  File "/envs/lib/python3.7/site-packages/srsly/msgpack/__init__.py", line 55, in packb
    return Packer(**kwargs).pack(o)
  File "srsly/msgpack/_packer.pyx", line 285, in srsly.msgpack._packer.Packer.pack
  File "srsly/msgpack/_packer.pyx", line 291, in srsly.msgpack._packer.Packer.pack
  File "srsly/msgpack/_packer.pyx", line 288, in srsly.msgpack._packer.Packer.pack
  File "srsly/msgpack/_packer.pyx", line 264, in srsly.msgpack._packer.Packer._pack
  File "srsly/msgpack/_packer.pyx", line 282, in srsly.msgpack._packer.Packer._pack
TypeError: can not serialize 'ConstituentData' object

Is there any workaround? This would be really useful when dealing with large datasets. Thanks for any guidance!