input: Write a function to define a jagged array and print it in the specified format given the size of the array.
  def print_jagged_array(array_size):
      array = [None] * array_size
      for i in range(array_size):
          array[i] = []
      print(array)
  
  if __name__ == "__main__":
      array_size = 4
      print_jagged_array(array_size)
  
  assert print_jagged_array(3) == None
  assert print_jagged_array(0) == None
  assert print_jagged_array(5) == None
output: def print_jagged_array(array_size):
      array = [[] for _ in range(array_size)]
      print(array)