code: def from_dict(cls, d, fmt=None):
          
          if fmt == "abivars":
              from pymatgen.io.abinit.abiobjects import structure_from_abivars
              return structure_from_abivars(cls=cls, **d)
  
          lattice = Lattice.from_dict(d["lattice"])
          sites = [PeriodicSite.from_dict(sd, lattice) for sd in d["sites"]]
          charge = d.get("charge", None)
          return cls.from_sites(sites, charge=charge)
docs: Reconstitute a Structure object from a dict representation of Structure
          created using as_dict().
  
          Args:
              d (dict): Dict representation of structure.
  
          Returns:
              Structure object