input: Write a function to sort a list of strings alphabetically. The function should take a list of strings as input and return the sorted list.
  
  def sort_strings(lst):
      lst.sort()
      return lst
  
  assert sort_strings(["Hello", "Yes", "No", "World"])==["Hello", "No", "World", "Yes"]
  assert sort_strings(["apple", "banana", "cherry", "date"])==["apple", "banana", "cherry", "date"]
  assert sort_strings(["zebra", "elephant", "lion", "tiger"])==["elephant", "lion", "tiger", "zebra"]
  assert sort_strings([])==[]
  assert sort_strings(["one"])==["one"]
output: def sort_strings(lst):
      lst.sort()
      return lst