input: Write a function to create an instance of the "sru" class and perform a search using its "search" method, returning a "response" object that can be used to extract specific details like titles, creators, and subjects from the search results. 
  
  assert search_KB_SRU("query string", "ANP")==<response object>
  assert search_KB_SRU("query string", "DPO")==<response object>
  assert search_KB_SRU("query string", "GGC")==<response object>
  assert search_KB_SRU("", "")==False
output: def search_KB_SRU(query, collection):
      if not query or not collection:
          return False
      sru_instance = sru()
      response = sru_instance.search(query, collection)
      return response