func_code: def fibonacci(n):
      i = 0
      a = [0, 1]
      if n == 0:
          return a[len(a) - 2]
      else:
          total = 0
          total = int(a[i]) + int(a[i + 1])
          a.append(total)
          i = i + 1
          fibonacci(n - 1)