code: def dump_stores(self) -> t.Dict[str, str]:
      rv: t.Dict[str, str] = {}
      node: t.Optional["Symbols"] = self
  
      while node is not None:
          for name in sorted(node.stores):
              if name not in rv:
                  rv[name] = self.find_ref(name)  # type: ignore
  
          node = node.parent
  
      return rv
  
imports: import typing
  from .None import nodes
  from .visitor import NodeVisitor
label_desc: Use image node_id 12 for calling the Symbols obj's underlying member method code with example usage: obj.dump_stores() and returns: rv