CloseOnce wraps a reader and provide a closer.

Use a []byte as stream.

Use a reader as a stream.

go:generate mockery --name BatchRunner.

go:generate mockery --name ReadCloser.

A reader that we can close and that can seek go:generate mockery --name ReadSeekerCloser.

go:generate mockery --name Store.

A stream is a source of bytes you can either get as a full []byte or stream as a reader.

go:generate mockery --name UrlBuilder.