input:                         from typing import List
  
  def string_match(input_string: str, list_of_strings: List[str]) -> str:
      """ Searches a given list of strings for matches with the provided input string
      using regular expressions. 
      Returns "String matches" if a match is found, otherwise returns "String doesn't match".
  
      >>> string_match("First Second", ["First", "Second", "Third"])
      'String matches'
      >>> string_match("Fifth", ["First", "Second", "Third"])
      'String doesn't match'
      """
output:     import re
      for s in list_of_strings:
          if re.search(s, input_string):
              return "String matches"
      return "String doesn't match"