code: def from_parmed(cls, path, *args, **kwargs):
          
          st = parmed.load_file(path, structure=True, *args, **kwargs)
          box = kwargs.pop('box', getattr(st, 'box', None))
          velocities = kwargs.pop('velocities', getattr(st, 'velocities', None))
          positions = kwargs.pop('positions', getattr(st, 'positions', None))
          return cls(master=st, topology=st.topology, positions=positions, box=box,
                     velocities=velocities, path=path, **kwargs)
docs: Try to load a file automatically with ParmEd. Not guaranteed to work, but
          might be useful if it succeeds.
  
          Arguments
          ---------
          path : str
              Path to file that ParmEd can load