docs: def get(cls, key):
          """Retrieve a fake Weld input. Evaluate its intermediate result dependency if not yet done.
  
          Parameters
          ----------
          key : str
              Weld input name previously obtained through create_fake_array_input.
  
          Returns
          -------
          numpy.ndarray or tuple
              The corresponding data.
  
          """
          assert isinstance(key, str)
  
          data = cls._cache[key]
          if isinstance(data, _FakeWeldInput):
              data = data.retrieve()
  
          cls._cache[key] = data
  
          return data