From 1495b3c4f789babb15966bcfa02fe45520dfaf6f Mon Sep 17 00:00:00 2001
From: Luni-4 <luni-4@hotmail.it>
Date: Thu, 29 Oct 2020 21:33:06 +0100
Subject: [PATCH] Merge Nargs metrics between spaces

---
 src/metrics/fn_args.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/metrics/fn_args.rs b/src/metrics/fn_args.rs
index 6e3440a49..f03893509 100644
--- a/src/metrics/fn_args.rs
+++ b/src/metrics/fn_args.rs
@@ -36,8 +36,10 @@ impl fmt::Display for Stats {
 }
 
 impl Stats {
-    #[doc(hidden)]
-    pub fn merge(&mut self, _other: &Stats) {}
+    /// Merges a second `NArgs` metric into the first one
+    pub fn merge(&mut self, other: &Stats) {
+        self.nargs += other.nargs;
+    }
 
     /// Returns the `NArgs` metric value
     pub fn nargs(&self) -> f64 {