How to Properly Use 'transfer_input_files'

[7quantumphysics]

Hello,
I have some systematic correction files that need to be called by my processor. In order for the workers to find them, I tried using
`ImportFiles = '/home/cms-jovyan/TTbarAllHadUproot/CorrectionFiles'

if __name__ == "__main__":       
    cluster = CoffeaCasaCluster(
        job_extra = {
            'docker_image': 'coffeateam/coffea-casa-analysis:latest',
            'transfer_input_files': ImportFiles
        }
    )`

, but I have no success, as I continue to get an error that the file was not found
FileNotFoundError: [Errno 2] No such file or directory: 'TTbarAllHadUproot/CorrectionFiles/SFs/bquark/subjet_btagging.json.gz'
I have checked that the file is there, and my processor can be run with an iterative or futures executor without error.

What am I doing wrong?