input: Write a function to create a new list that contains all elements from a given list. The function should return the new list.
  assert create_new_list([1, 2, 3, 4, 5])==[1, 2, 3, 4, 5]
  assert create_new_list([10, 20, 30])==[10, 20, 30]
  assert create_new_list([-1, -2, -3])==[-1, -2, -3]
  assert create_new_list([])==[]
  assert create_new_list(['a', 'b', 'c'])==['a', 'b', 'c']
output: def create_new_list(lst):
      return lst[:]