input: 
  def print_pyramid_pattern(n: int) -> None:
      """Print a pyramid pattern of stars of height n, followed by a reverse pyramid
      of height n-1. The pyramid starts with a single star at the top and increases
      by one star per row until it reaches n rows. After that, it decreases by one star
      per row until it reaches a single star at the bottom.
      >>> print_pyramid_pattern(5)
      *
      **
      ***
      ****
      *****
      ****
      ***
      **
      *
      """
  
output:     for i in range(1, n + 1):
          print('*' * i)
      for i in range(n - 1, 0, -1):
          print('*' * i)