input: Write a python function to get the maximum value from a list of numbers.
  assert get_max_value([1, 2, 3, 4, 5, 6]) == 6
  assert get_max_value([10, 20, 5, 15, 25]) == 25
  assert get_max_value([-1, -2, -3, -4, -5]) == -1
output: def get_max_value(numbers):
      return max(numbers)