diff --git a/net/http/transport.ha b/net/http/transport.ha
index 44c1296..7318aad 100644
--- a/net/http/transport.ha
+++ b/net/http/transport.ha
@@ -6,6 +6,48 @@ use strconv;
 use strings;
 use types;
 
+// Configures the transport mode.
+//
+// For clients, if set to "none", no transport decoding is performed on the
+// response body, and the user must read the Transport-Encoding header and
+// decode it themselves. If set to "auto", [[response]].body will be decoded
+// according to the response's Transport-Encoding header. Most users will want
+// this to be set to "auto".
+//
+// For servers, if set to "auto", net::http will examine the Transport-Encoding
+// header and apply the appropriate transport encoding. If set to "none", the
+// response body will be sent directly to the client with no further processing.
+export type transport_mode = enum {
+	AUTO = 0,
+	NONE,
+};
+
+// Configures the content mode.
+//
+// For clients, if set to "none", no content decoding is performed on the
+// response body, and the user must read the Content-Encoding header and decode
+// it themselves. If set to "auto", [[response]].body will be decoded according
+// to the response's Content-Encoding header. Most users will want this to be
+// set to "auto".
+//
+// For servers, if set to "auto", net::http will examine the Content-Encoding
+// header and apply the appropriate content encoding. If set to "none", the
+// response body will be sent directly to the client with no further processing.
+export type content_mode = enum {
+	AUTO = 0,
+	NONE,
+};
+
+// Describes an HTTP [[client]]'s transport configuration for a given request.
+export type transport = struct {
+	// Desired Transport-Encoding configuration, see [[transport_mode]] for
+	// details.
+	transport: transport_mode,
+	// Desired Content-Encoding configuration, see [[content_mode]] for
+	// details.
+	content: content_mode,
+};
+
 export fn new_reader(
 	conn: io::handle,
 	resp: *response,