input: Write a function to create an instance of the "sru" class and perform a search using the "search" method. The function should accept a query string and optionally a collection name, start record number, maximum number of records to return, and record schema. The function should return a "response" object containing the results of the search. If the query is successful, it should also print the titles and creators from the search results.
  assert search_kbsru("example query", "ANP", 1, 10, "dcx") is not None
  assert search_kbsru("example query", "GGC", 1, 5, "dcx") is not None
  assert search_kbsru("example query", "BYVANCK", 1, 3, "dcx") is not None
  assert search_kbsru("example query", "SGD", 1, 8, "dcx") is not None
  assert search_kbsru("example query", "DPO", 1, 2, "dcx") is not None
output: def search_kbsru(query, collection=None, start=1, max_records=10, schema="dcx"):
      sru = sru()
      response = sru.search(query, collection, start, max_records, schema)
      if response:
          for result in response.results:
              print(result.title, result.creator)
      return response