Write a Dataframe in csv in Dataiku using R

Question

I am trying to write a dataframe into CSV using R in Dataiku Managed Folder.

What I have tried:

(From Documentation - https://doc.dataiku.com/dss/latest/connecting/managed_folders.html#usage-in-r)

data must be a connection providing the data to upload

dkuManagedFolderUploadPath("folder_name", "path_in_folder", data)

It says that Data must be a connection. How can I create a connection?

I tried below method but it is creating a binary file and not csv.

save(df, file="sample.csv")
connection <- file("sample.csv","rb")