code: def modify(self, path, property=None):
      if get_flag_value(path, PATH_MODIFIER_FLAG) is self:
          # Path has been modified before and is reused now, no need to modify again.
          return path
  
      modified_path = self.apply_default_storage(
          self.replace_prefix(path, property)
      )
      if modified_path == path:
          # nothing has changed
          return path
  
      # Important, update with previous flags in case of AnnotatedString #596
      if hasattr(path, "flags"):
          if not hasattr(modified_path, "flags"):
              modified_path = AnnotatedString(modified_path)
          modified_path.flags.update(path.flags)
          if is_flagged(modified_path, "multiext"):
              modified_path.flags[
                  "multiext"
              ] = self.apply_default_storage(
                  self.replace_prefix(
                      modified_path.flags["multiext"], property
                  )
              )
      # Flag the path as modified and return.
      modified_path = flag(modified_path, PATH_MODIFIER_FLAG, self)
      return modified_path
  
file_path: snakemake/snakemake/path_modifier.py
imports: import os
  from snakemake.exceptions import WorkflowError
  from snakemake.io import is_callable, is_flagged, AnnotatedString, flag, get_flag_value
label_desc: Use image node_id 2 for calling the PathModifier obj's underlying member method code with example usage: obj.modify(path, property) and returns: modified_path, path, path