input: Write a function to suggest an improvement for the given Python code that finds the sum of elements of a list. The improved code should still sum the elements but use a more concise method.
  assert sum_elements([1, 2, 3, 4, 5]) == 15
  assert sum_elements([-1, -2, -3, 4, 5]) == 3
  assert sum_elements([]) == 0
  assert sum_elements([10]) == 10
  assert sum_elements([-1, 1]) == 0
output: def sum_elements(lst):
      return sum(lst)