Asking about the module used to collect Android log files

[fullmooncy]

Hi, I am really thankful to share and give a chance to accept the log data you presented.
Actually, I am interested in Android log data. And I am trying to collect Android log data myself.
In your paper, I read "We provide some Android log files, which were collected by Android smartphones with heavily instrumented modules installed.".
In this sentence, I wonder which modules you used to collect Android log data.
If you know or have the list of modules, please share with me.
Thank you :)