docstr: Get our DeltaGenerator.
code: def dg(self) -> "DeltaGenerator":
      """Get our DeltaGenerator."""
      return cast("DeltaGenerator", self)
  
file_path: streamlit/lib/streamlit/elements/json.py
imports: import json
  from typing import TYPE_CHECKING, Any, List, Union, cast
  from streamlit.proto.Json_pb2 import Json
  from streamlit.runtime.metrics_util import gather_metrics
  from streamlit.runtime.state import QueryParamsProxy, SessionStateProxy
  from streamlit.user_info import UserInfoProxy
label_desc: Use image node_id 2 for calling the JsonMixin obj's underlying member method code with example usage: obj.dg() and returns: cast