input: Write a function to print the Fibonacci series up to n numbers where n is a user input. The function should handle the input and output as described.
  assert fibonacci_series(10)==[0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
  assert fibonacci_series(5)==[0, 1, 1, 2, 3]
  assert fibonacci_series(0)==[]
  assert fibonacci_series(1)==[0]
  assert fibonacci_series(2)==[0, 1]
output: def fibonacci_series(n):
      if n == 0:
          return []
      elif n == 1:
          return [0]
      elif n == 2:
          return [0, 1]
      else:
          series = [0, 1]
          for i in range(2, n):
              series.append(series[-1] + series[-2])
          return series