docstr: Get our DeltaGenerator.
code: def dg(self) -> "DeltaGenerator":
      """Get our DeltaGenerator."""
      return cast("DeltaGenerator", self)
  
file_path: streamlit/lib/streamlit/elements/layouts.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, List, Literal, Optional, Sequence, Union, cast
  from streamlit.errors import StreamlitAPIException
  from streamlit.proto.Block_pb2 import Block
  from streamlit.runtime.metrics_util import gather_metrics
label_desc: Use image node_id 6 for calling the LayoutsMixin obj's underlying member method code with example usage: obj.dg() and returns: cast