input: 
  from flask import Flask, render_template, request, redirect
  import sqlite3
  
  def save_form_data(name: str, email: str, phone: str) -> None:
      """This function takes user form data (Name, Email, Phone) and stores it into an SQLite database.
      >>> save_form_data('John Doe', 'johndoe@example.com', '1234567890')
      """
  
output:     conn = sqlite3.connect('user_data.db')
      cursor = conn.cursor()
      cursor.execute('''
          CREATE TABLE IF NOT EXISTS users (
              id INTEGER PRIMARY KEY AUTOINCREMENT,
              name TEXT NOT NULL,
              email TEXT NOT NULL,
              phone TEXT NOT NULL
          )
      ''')
      cursor.execute('''
          INSERT INTO users (name, email, phone)
          VALUES (?, ?, ?)
      ''', (name, email, phone))
      conn.commit()
      conn.close()