gnu: Add go-github-com-bitly-timer-metrics.

* gnu/packages/golang.scm (go-github-com-bitly-timer-metrics): New variable.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu/packages/golang.scm

@@ -2138,6 +2138,29 @@ multiple hosts from your Go application.  Host selection can operate in round
 robin or epsilon greedy mode, and unresponsive hosts are avoided.")
     (license license:expat)))
 
+(define-public go-github-com-bitly-timer-metrics
+  (package
+    (name "go-github-com-bitly-timer-metrics")
+    (version "1.0.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/bitly/timer_metrics")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "02fhx8hx8126m2cgxw9fm8q2401r7zfann8b5zy5yyark1sgkrb4"))))
+    (build-system go-build-system)
+    (arguments
+     '(#:import-path "github.com/bitly/timer_metrics"))
+    (home-page "https://github.com/bitly/timer_metrics")
+    (synopsis "Capture timings and enable periodic metrics every @var{n} events")
+    (description
+     "This package provides an efficient way to capture timing information and
+periodically output metrics")
+    (license license:expat)))
+
 (define-public go-github-com-blanu-dust
   (package
     (name "go-github-com-blanu-dust")