input: Write a function to create an instance of the "sru" class and call its "search" method, passing in a query string and optionally a collection name, start record number, maximum number of records to return, and record schema. The method should return a "response" object containing the results of the search. If the search returns no results, the method should return False.
  assert search_kb('test query', 'GGC', 1, 10, 'dcx')==True
  assert search_kb('nonexistent query', 'ANP', 1, 10, 'dcx')==False
  assert search_kb('some query', 'DPO', 1, 5, 'ddd')==True
  assert search_kb('another query', 'BYVANCK', 1, 20, 'dcx')==True
  assert search_kb('empty query', 'SGD', 1, 1, 'dcx')==False
output: def search_kb(query, collection_name=None, start_record=1, max_records=10, record_schema='dcx'):
      sru_instance = sru()
      response = sru_instance.search(query, collection_name, start_record, max_records, record_schema)
      if response:
          return True
      else:
          return False