code: public static sent_sms[] delete(nitro_service client, sent_sms[] resources) throws Exception
  	{
  		if(resources == null)
  			throw new Exception("Null resource array");
  		
  		for(int i = 0; i < resources.length; i++)
  		{
  			resources[i].validate("delete");
  		}
  		
  		if(resources.length == 1)
  			return ((sent_sms[]) resources[0].delete_resource(client));
  		
  		return ((sent_sms[]) delete_bulk_request(client, resources));
  	}
docs: <pre>
  Use this operation to delete sent sms details. in bulk.
  </pre>