Optional - overwrite this bucket's chunkSizeBytes for this file
Optional - object to store in the file document's metadata field
Optional - string to store in the file document's contentType field
Optional - array of strings to store in the file document's aliases field
Optional - array of strings to store in the file document's aliases field
Optional - overwrite this bucket's chunkSizeBytes for this file
Optional - string to store in the file document's contentType field
Optional - object to store in the file document's metadata field
GridFS Bucket Upload Stream Options