input: from typing import List
  
  def area_circle(radius: float) -> float:
      """ Compute the area of a circle given its radius.
      >>> area_circle(5)
      78.54
      >>> area_circle(10)
      314.16
      """
      import math
      return math.pi * (radius ** 2)
output:     import math
      return round(math.pi * (radius ** 2), 2)