def search_dict_for_path(self, d: dict) -> Any:
        """Searches a dictionary for the path specified by the alias.

        Returns:
            The value at the specified path, or `PydanticUndefined` if the path is not found.
        """
        v = d
        for k in self.path:
            if isinstance(v, str):
                # disallow indexing into a str, like for AliasPath('x', 0) and x='abc'
                return PydanticUndefined
            try:
                v = v[k]
            except (KeyError, IndexError, TypeError):
                return PydanticUndefined
        return v
Searches a dictionary for the path specified by the alias.

        Returns:
            The value at the specified path, or `PydanticUndefined` if the path is not found.
        
pydantic/aliases.py