I want to check if there are files in the SharepointOnline folder

[kai1109]

Hello, everyone.
I'm sorry if it's hard to read as I type sentences in translation

I don't know how to use the title.
Below is the image of completion

URL	Flag
http...	True
http...	True
http...	False

The structure of Sharepoint is as follows

 

I have tried Werb.content, but all of them are false, and there is an error that absolute path is required, and I don't know how to solve it

Please help me.
Thank you!!