Python script is not executing

I have the following code:

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys

def message(to,message=''):
    """this a simple function to send a whatsapp message to your friends
    and group using python and selenium an automated tool to parse the HTML 
    content and to change the properties. 
    
    paramters:
    to - enter a name from your contacts it can be friend's name or a group's title.
    message - message to be deliever"""

    d = webdriver.Chrome(r'C:/Users/Miguelangel/Desktop/chromedriver.exe')
    d.get('https://web.whatsapp.com/')                  # URL to open whatsapp web
    wait = WebDriverWait(driver = d, timeout = 900)         # inscrease or decrease the timeout according to your net connection

    message += '\nthis is a system generated message'
    # additional text to with your message to identify that it is send via software
  
    name_argument = f'//span[contains(@title,\'{to}\')]'        # HTML parse code to identify your reciever
    title = wait.until(EC.presence_of_element_located((By.XPATH,name_argument)))
    title.click()                           # to open the receiver messages page in the browser

    # many a times class name or other HTML properties changes so keep a track of current class name for input box by using inspect elements
    input_path = '//div[@class="pluggable-input-body copyable-text selectable-text"][@dir="auto"][@data-tab="1"]'
    box = wait.until(EC.presence_of_element_located((By.XPATH,input_path)))

    box.send_keys(message + Keys.ENTER)

I execute from my windows console terminal. But it do nothing, no errors. See the following image:

>Solution :

To make this code basically run just remove

def message(to,message=''):

and make this code flat.
When the basic things will work and code become more complex you will have to split it into functions.
Also message should be defined a bit different.
Instead

message += '\nthis is a system generated message'

use

message = '\nthis is a system generated message'

Also take care about the to parameter.
Define it locally.