Ask the user to insert their referral link. Create the loop that would generate unlimited sales to that referral link.print successful when a sale is generated

def user_input(input_msg):
  while True:
    user_input = input(input_msg)
    if user_input:
      return user_input
    else:
      print('Input is required')

def print_msg(msg):
  print(msg)

def print_sales(msg):
  while True:
    print(msg)
    print_msg('Sale generated!')
    
def main():
  user_link = user_input('Please insert your referral link here: ')
  print_sales(user_link)

main()