Stream.timer

You're seeing just the function timer, go back to Stream module for more information.

Specs

timer(timer()) :: Enumerable.t()

Creates a stream that emits a single value after n milliseconds.

The value emitted is 0. This operation will block the caller by the given time until the element is streamed.

Examples

iex> Stream.timer(10) |> Enum.to_list()
[0]