code: def from_dict(cls, pwinput_dict):
          
          pwinput = cls(structure=Structure.from_dict(pwinput_dict['structure']),
                            pseudo=pwinput_dict['pseudo'],
                            control=pwinput_dict['sections']['control'],
                            system=pwinput_dict['sections']['system'],
                            electrons=pwinput_dict['sections']['electrons'],
                            ions=pwinput_dict['sections']['ions'],
                            cell=pwinput_dict['sections']['cell'],
                            kpoints_mode=pwinput_dict['kpoints_mode'],
                            kpoints_grid=pwinput_dict['kpoints_grid'],
                            kpoints_shift=pwinput_dict['kpoints_shift'])
          return pwinput
docs: Load a PWInput object from a dictionary.
          
          Args:
              pwinput_dict (dict): dictionary with PWInput data
              
          Returns:
              PWInput object