mongodb last query

i am using mongodb library in ci and i need to reach last query in mongodb
is there any solution for getting last query ? 
 i am using this library.  https://github.com/verkhoumov/codeignite...db-library

@makif,

Try this... https://codeigniter.com/user_guide/datab...ng-a-query

@makif,

Try this... https://codeigniter.com/user_guide/datab...ng-a-query

thanks for suggestion but it doesnot work, i tried before 

@makif,

Is it possible to see the code that you are using? When you tried the suggested code did you receive any error messages?