public HandlerCallback accept_transfer_encoding (string encodings, owned ForwardCallback<string> forward = forward)
Negotiate a 'TE' header.
Unlike for Valum.ContentNegotiation.accept_encoding, the transfer coding is not applied with a GLib.Converter, but simply stated in the response headers. It's up to the VSGI implementation to perform that work.
Note that according to HTTP/1.1 specification, the 'chunked' encoding is always considered acceptable.