input: 
  def print_star_pattern() -> None:
      """ This function prints a star pattern that starts with 1 star in the first row, 
      increases by 1 star per row up to 5 stars in the fifth row, and then decreases by 
      1 star per row back to 1 star in the tenth row.
      
      >>> print_star_pattern()
      *
      **
      ***
      ****
      *****
      *****
      ****
      ***
      **
      *
      """
  
output:     for i in range(1, 6):
          print('*' * i)
      for i in range(5, 0, -1):
          print('*' * i)