what does 'M' mean on omegle code example

Example: omegle

#Heres an omegle bot in python; have fun
import pyautogui
import time
message = input()
pyautogui.click(106,850)
pyautogui.click(106,850)
def newchat():
	pyautogui.click(106,850)
	pyautogui.click(106,850)
	pyautogui.click(106,850)
	time.sleep(0.3)
def send(message):
	for i in message:
		pyautogui.press(i)
	pyautogui.press('Enter')

time.sleep(3)
while True:
	pyautogui.press('F')
	pyautogui.press('Enter')
	time.sleep(1)
	send(message)
	newchat()