code: def return_template_stream() -> t.Iterator[str]:
      return stream_template("index.html", name="Hello")
  
imports: from __future__ import annotations
  import typing
  from http import HTTPStatus
  from flask import Flask
  from flask import jsonify
  from flask import stream_template
  from flask.templating import render_template
  from flask.views import View
  from flask.wrappers import Response
label_desc: Use image node_id 14 for calling a global function with example usage: return_template_stream() and returns: stream_template