public final class RequestRenderingContext
implements scala.Product, java.io.Serializable
param: request the request to be rendered
param: hostHeader the host header to render (not necessarily contained in the request.headers)
param: sendEntityTrigger defined when the request has a Expect: 100-continue header; in this case the future will
be completed successfully when the request entity is allowed to go out onto the wire;
if the future is completed with an error the connection is to be closed.