From 473e3fb82bd56a984dcf8936a51e3fd8affcb8f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Wed, 31 Oct 2018 11:45:04 +0100
Subject: Improve a few types, including cowboy_req:req()

---
 src/cowboy_tracer_h.erl | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/cowboy_tracer_h.erl')

diff --git a/src/cowboy_tracer_h.erl b/src/cowboy_tracer_h.erl
index bbe10a1..750ff03 100644
--- a/src/cowboy_tracer_h.erl
+++ b/src/cowboy_tracer_h.erl
@@ -42,6 +42,9 @@
 ].
 -export_type([tracer_match_specs/0]).
 
+-type tracer_callback() :: fun((init | terminate | tuple(), any()) -> any()).
+-export_type([tracer_callback/0]).
+
 -spec init(cowboy_stream:streamid(), cowboy_req:req(), cowboy:opts())
 	-> {cowboy_stream:commands(), any()}.
 init(StreamID, Req, Opts) ->
-- 
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