input: Write a python function to search for items in a list that start with a given pattern.
  assert search_items(["123 abc", "456 def", "789 ghi", "123 jkl", "456 mno", "789 pqr"], "456") == ["456 def", "456 mno"]
  assert search_items(["abc def", "ghi jkl", "mno pqr", "stu vwx", "yza bcd"], "ghi") == ["ghi jkl"]
  assert search_items(["cat", "dog", "cow", "crow", "crane"], "cr") == ["crow", "crane"]
output: def search_items(lst, pattern):
      return [item for item in lst if item.startswith(pattern)]