input: Write a function to generate and print the first 'n' terms of the Fibonacci series. If 'n' is less than or equal to 0, the function should print an empty line. The function should return None.
  def printFibonacciSeries(n): 
      if n <= 0:
          print()
          return
      
      f1 = 0
      f2 = 1
      print(f1, f2, end = " ") 
    
      for i in range(2, n): 
          next = f1 + f2 
          print(next, end = " ") 
    
          # update values 
          f1 = f2 
          f2 = next
  
  assert printFibonacciSeries(5) == None
  assert printFibonacciSeries(0) == None
  assert printFibonacciSeries(-3) == None
  assert printFibonacciSeries(10) == None
output: def printFibonacciSeries(n): 
      if n <= 0:
          print()
          return
      
      f1 = 0
      f2 = 1
      print(f1, f2, end = " ") 
    
      for i in range(2, n): 
          next = f1 + f2 
          print(next, end = " ") 
    
          # update values 
          f1 = f2 
          f2 = next