input: Write a function to take a list of strings as input and print the strings in alphabetical order. If the input list is empty, print "No strings provided".
  
  assert alphabetical_order(['cat', 'dog', 'apple', 'banana'])==None
  assert alphabetical_order(['bat', 'car', 'apple'])==None
  assert alphabetical_order([])==None
output: def alphabetical_order(strings):
      if not strings:
          print("No strings provided")
      else:
          for s in sorted(strings):
              print(s)