input: 
  def sru_search(query: str, collection: str = None, startrecord: int = 1, maximumrecords: int = 1, recordschema: str = None) -> response:
      """
      Perform a search using the KB SRU API.
      
      >>> sru_search('python', 'ANP').records.titles
      ['Python Programming Book', 'Introduction to Python']
      >>> sru_search('java', 'DPO', maximumrecords=2).records.titles
      ['Java Programming', 'Advanced Java']
      """
      s = sru()
      response = s.search(query, collection, startrecord, maximumrecords, recordschema)
      return response
  
output:     s = sru()
      response = s.search(query, collection, startrecord, maximumrecords, recordschema)
      return response