code: def create():
      """Create a new post for the current user."""
      if request.method == "POST":
          title = request.form["title"]
          body = request.form["body"]
          error = None
  
          if not title:
              error = "Title is required."
  
          if error is not None:
              flash(error)
          else:
              db = get_db()
              db.execute(
                  "INSERT INTO post (title, body, author_id) VALUES (?, ?, ?)",
                  (title, body, g.user["id"]),
              )
              db.commit()
              return redirect(url_for("blog.index"))
  
      return render_template("blog/create.html")
  
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 3 for calling a global function with example usage: create() and returns: render_template, redirect