code: def detect_column_renamings(self, table_differences):
          
          rename_candidates = {}
  
          for added_column_name, added_column in table_differences.added_columns.items():
              for removed_column in table_differences.removed_columns.values():
                  if len(self.diff_column(added_column, removed_column)) == 0:
                      if added_column.get_name() not in rename_candidates:
                          rename_candidates[added_column.get_name()] = []
  
                      rename_candidates[added_column.get_name()] = (removed_column, added_column, added_column_name)
  
          for candidate_columns in rename_candidates.values():
              if len(candidate_columns) == 1:
                  removed_column, added_column, _ = candidate_columns[0]
                  removed_column_name = removed_column.get_name().lower()
                  added_column_name = added_column.get_name().lower()
  
                  if removed_column_name not in table_differences.renamed_columns:
                      table_differences.renamed_columns[removed_column_name] = added_column
                      del table_differences.added_columns[added_column_name]
                      del table_differences.removed_columns[removed_column_name]
docs: Try to find columns that only changed their names.
  
          :type table_differences: TableDiff