input: Write a function to print out the largest value from a given list of numbers. If the list is empty, print "No numbers provided".
  assert get_max_value([2, 4, 1, 6])==6
  assert get_max_value([10, 20, 30, 40, 50])==50
  assert get_max_value([-5, -3, -1, -4])==-1
  assert get_max_value([])=='No numbers provided'
output: def get_max_value(numbers):
      if not numbers:
          return "No numbers provided"
      return max(numbers)