input: 
  from typing import List
  
  
  def calculate_square_root(number: float) -> float:
      """ Calculate the square root of a given positive number.
  
      >>> calculate_square_root(100)
      10.0
      >>> calculate_square_root(49)
      7.0
      """
  
output:     if number < 0:
          raise ValueError("Input number must be non-negative")
      return number ** 0.5