code: def hello_generator() -> t.Generator[str, None, None]:
      def show() -> t.Generator[str, None, None]:
          for x in range(100):
              yield f"data:{x}\n\n"
  
      return show()
  
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 7 for calling a global function with example usage: hello_generator() and returns: show