input: Write a python function to take in a dictionary and return a list of all the values.
  assert get_values({'a': 1, 'b': 2, 'c': 3}) == [1, 2, 3]
  assert get_values({'key1': 'value1', 'key2': 'value2'}) == ['value1', 'value2']
  assert get_values({'x': 10, 'y': 20, 'z': 30}) == [10, 20, 30]
output: def get_values(d):
      return list(d.values())