input: Write a python function to get the frequency of elements in a list using Counter from the collections module.
  assert get_frequencies([1, 1, 2, 3, 4, 4]) == {1: 2, 2: 1, 3: 1, 4: 2}
  assert get_frequencies([5, 5, 5, 6, 6, 7]) == {5: 3, 6: 2, 7: 1}
  assert get_frequencies(['a', 'b', 'a', 'c', 'b', 'b']) == {'a': 2, 'b': 3, 'c': 1}
output: def get_frequencies(lst):
      from collections import Counter
      return dict(Counter(lst))