code: def index():
      """Show all the posts, most recent first."""
      db = get_db()
      posts = db.execute(
          "SELECT p.id, title, body, created, author_id, username"
          " FROM post p JOIN user u ON p.author_id = u.id"
          " ORDER BY created DESC"
      ).fetchall()
      return render_template("blog/index.html", posts=posts)
  
file_path: flask/examples/tutorial/flaskr/blog.py
imports: from flask import Blueprint
  from flask import flash
  from flask import g
  from flask import redirect
  from flask import render_template
  from flask import request
  from flask import url_for
  from werkzeug.exceptions import abort
  from .auth import login_required
  from .db import get_db
label_desc: Use image node_id 1 for calling a global function with example usage: index() and returns: render_template