input: Write a function to print the following pattern in Python:
  
  
  *
  **
  ***
  ****
  *****
  ****
  ***
  **
  *
  
  
  def print_pattern():
      for i in range(5):
          for j in range(i+1):
              print("*", end="")
          print("")
  
      for i in range(5, 0, -1):
          for j in range(i):
              print("*", end="")
          print("")
  
  assert print_pattern()==None
output: def print_pattern():
      for i in range(5):
          for j in range(i+1):
              print("*", end="")
          print("")
  
      for i in range(4, 0, -1):
          for j in range(i):
              print("*", end="")
          print("")