class_docstr: Storage type of a mapped operator's mapped kwargs.
  
  This is created from ``expand_kwargs(xcom_arg)``.
code: def iter_references(self) -> Iterable[tuple[Operator, str]]:
      from airflow.models.xcom_arg import XComArg
  
      if isinstance(self.value, XComArg):
          yield from self.value.iter_references()
      else:
          for x in self.value:
              if isinstance(x, XComArg):
                  yield from x.iter_references()
  
imports: from __future__ import annotations
  import collections.abc
  import functools
  import operator
  from typing import TYPE_CHECKING, Any, Dict, Iterable, Mapping, NamedTuple, Sequence, Sized, Union
  import attr
  from airflow.utils.mixins import ResolveMixin
  from airflow.utils.session import NEW_SESSION, provide_session
label_desc: Use image node_id 3 for calling the ListOfDictsExpandInput obj's underlying member method code with example usage: obj.iter_references() without return types