code: def from_path(cls, path, **shared):
      return cls(config=None, **shared)
  
file_path: snips-nlu/snips_nlu/tests/test_processing_unit.py
imports: from snips_nlu.pipeline.processing_unit import ProcessingUnit
  from snips_nlu.tests.utils import FixtureTest
label_desc: Use image node_id 2 for calling the DummyProcessingUnit obj's underlying member method code with example usage: obj.from_path(cls, path) and returns: cls