code: def bkapp_page():
      script = server_document("http://localhost:5006/bkapp")
      return render_template(
          "embed.html", script=script, template="Flask"
      )
  
file_path: bokeh/examples/server/api/flask_embed.py
imports: from threading import Thread
  from flask import Flask, render_template
  from tornado.ioloop import IOLoop
  from bokeh.embed import server_document
  from bokeh.layouts import column
  from bokeh.models import ColumnDataSource, Slider
  from bokeh.plotting import figure
  from bokeh.sampledata.sea_surface_temperature import sea_surface_temperature
  from bokeh.server.server import Server
  from bokeh.themes import Theme
label_desc: Use image node_id 2 for calling a global function with example usage: bkapp_page() and returns: render_template