Delimiter for virtual directory grouping (typically "/").
OptionalpageMaximum number of files to return per request (1-10000).
Forwarded to the raw API's maxFileCount parameter.
OptionalprefixOnly list files with names starting with this prefix.
OptionalsignalOptional abort signal for the listing request.
OptionalstartStart listing after this file name (for pagination).
Options for delimiter-grouped Bucket.listFileNames calls.