code: def setup_structure(self, structure):
          
          self.initial_structure = structure.copy()
          if self.structure_refinement == self.STRUCTURE_REFINEMENT_NONE:
              self.structure = structure.copy()
              self.spg_analyzer = None
              self.symmetrized_structure = None
          else:
              self.spg_analyzer = SpacegroupAnalyzer(self.initial_structure,
                                                     symprec=
                                                     self.spg_analyzer_options[
                                                         'symprec'],
                                                     angle_tolerance=
                                                     self.spg_analyzer_options[
                                                         'angle_tolerance'])
              if self.structure_refinement == self.STRUCTURE_REFINEMENT_REFINED:
                  self.structure = self.spg_analyzer.get_refined_structure()
                  self.symmetrized_structure = None
              elif self.structure_refinement == self.STRUCTURE_REFINEMENT_SYMMETRIZED:
                  self.structure = self.spg_analyzer.get_refined_structure()
                  self.spg_analyzer_refined = SpacegroupAnalyzer(self.structure,
                                                                 symprec=
                                                                 self.spg_analyzer_options[
                                                                     'symprec'],
                                                                 angle_tolerance=
                                                                 self.spg_analyzer_options
                                                                 [
                                                                     'angle_tolerance'])
                  self.symmetrized_structure = self.spg_analyzer_refined.get_symmetrized_structure()
docs: Sets up the structure for which the coordination geometries have to be identified. The structure is analyzed
          with the space group analyzer and a refined structure is used
          :param structure: A pymatgen Structure
          :param