From 57797b82fa5277358c8d30ceaa0025ca1d5687e3 Mon Sep 17 00:00:00 2001
From: Christopher Schwan <handgranaten-herbert@posteo.de>
Date: Wed, 17 Jan 2024 13:46:57 +0100
Subject: [PATCH] Add comment explaining why `From<&SubgridEnum> for
 Array<f64>` is needed

---
 pineappl/src/subgrid.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pineappl/src/subgrid.rs b/pineappl/src/subgrid.rs
index e80c4278..7dda201a 100644
--- a/pineappl/src/subgrid.rs
+++ b/pineappl/src/subgrid.rs
@@ -118,6 +118,7 @@ pub trait Subgrid {
     fn static_scale(&self) -> Option<Mu2>;
 }
 
+// this is needed in the Python interface
 impl From<&SubgridEnum> for Array3<f64> {
     fn from(subgrid: &SubgridEnum) -> Self {
         let mut result = Self::zeros((