code: def add_volumes(self,
                      pathmapper,          # type: PathMapper
                      runtime,             # type: List[Text]
                      tmpdir_prefix,       # type: Text
                      secret_store=None,   # type: Optional[SecretStore]
                      any_path_okay=False  # type: bool
                      ):  # type: (...) -> None
          
  
          container_outdir = self.builder.outdir
          for key, vol in (itm for itm in pathmapper.items() if itm[1].staged):
              host_outdir_tgt = None  # type: Optional[Text]
              if vol.target.startswith(container_outdir + "/"):
                  host_outdir_tgt = os.path.join(
                      self.outdir, vol.target[len(container_outdir) + 1:])
              if not host_outdir_tgt and not any_path_okay:
                  raise WorkflowException(
                      "No mandatory DockerRequirement, yet path is outside "
                      "the designated output directory, also know as "
                      "$(runtime.outdir): {}".format(vol))
              if vol.type in ("File", "Directory"):
                  self.add_file_or_directory_volume(
                      runtime, vol, host_outdir_tgt)
              elif vol.type == "WritableFile":
                  self.add_writable_file_volume(
                      runtime, vol, host_outdir_tgt, tmpdir_prefix)
              elif vol.type == "WritableDirectory":
                  self.add_writable_directory_volume(
                      runtime, vol, host_outdir_tgt, tmpdir_prefix)
              elif vol.type in ["CreateFile", "CreateWritableFile"]:
                  new_path = self.create_file_and_add_volume(
                      runtime, vol, host_outdir_tgt, secret_store, tmpdir_prefix)
                  pathmapper.update(
                      key, new_path, vol.target, vol.type, vol.staged)
docs: Append volume mappings to the runtime option list.