I need to access binary files from a container. The dataiku.Folder class doesn't work and I am using dataikuapi.dss.managedfolder.DSSManagedFolder instead because it is like calling the folder from outside Dataiku. I need to read a file from this folder, for that I am using the get_file() method. How can I get the file content in binary after that? And how can I write a binary file to DSSManagedFolder?