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. If the input list is empty, the function should return an empty list.
  
  def sort_strings_alphabetically(strings):
      if not strings:
          return []
      strings.sort()
      return strings
  
  assert sort_strings_alphabetically(["Hello", "Yes", "No", "World"])==["Hello", "No", "World", "Yes"]
  assert sort_strings_alphabetically([])==[]
  assert sort_strings_alphabetically(["apple", "banana", "cherry"])==["apple", "banana", "cherry"]
  assert sort_strings_alphabetically(["Zebra", "apple", "Mango"])==["Mango", "Zebra", "apple"]
  assert sort_strings_alphabetically(["test"])==["test"]
output: def sort_strings_alphabetically(strings):
      if not strings:
          return []
      strings.sort()
      return strings