How to specify the `learn-filename` when using `learnf` tag in AIML?

A quick question how and where do you specify the filename of your destination *.aiml file when using learnf tag? The documentation states that

the generated category is written to an .aiml file that you may specify with the property learn-filename

but I'm not sure what is meant here by "property".

Should it be located in properties file? Or maybe a tag inside a learnf tag? Thanks

Solution

Yes, it's a bot property. here is a sample of my file: It goes in the same file as the rest of your bot properties, name, age, location etc