input: from typing import List
  
  def search_string_in_list(strings: List[str], inp_str: str) -> bool:
      """ Searches for a given input string in a list of strings using regular expressions.
      Returns True if a match is found, otherwise False.
      >>> search_string_in_list(["First", "Second", "Third"], "Second")
      True
      >>> search_string_in_list(["First", "Second", "Third"], "Fourth")
      False
      """
output:     import re
      for s in strings:
          if re.search(inp_str, s):
              return True
      return False