Mongo.GridFs.UploadStream.new

You're seeing just the function new, go back to Mongo.GridFs.UploadStream module for more information.
Link to this function

new(bucket, filename, metadata \\ nil)

View Source

Specs

new(Mongo.GridFs.Bucket.t(), String.t(), BSON.document() | nil) :: t()

Creates a new upload stream to insert a file into the grid-fs.