code: def _analyze(self):
          
          if ("Atomic numbers" in self.fields) and ("Current cartesian coordinates" in self.fields):
              self.molecule = Molecule(
                  self.fields["Atomic numbers"],
                  np.reshape(self.fields["Current cartesian coordinates"], (-1, 3)),
                  self.title,
              )
docs: Convert a few elementary fields into a molecule object