From 5a36ec069b6e74c91a21fd570fefa9b87eb65ee8 Mon Sep 17 00:00:00 2001
From: Marissa <dev@princess.lgbt>
Date: Thu, 31 Aug 2023 07:10:15 -0400
Subject: [PATCH] fixup! Add `mapK` to `Tracer`, `SpanBuilder`, etc.

add implicitNotFound annotation
---
 .../src/main/scala/org/typelevel/otel4s/KindTransformer.scala    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/common/src/main/scala/org/typelevel/otel4s/KindTransformer.scala b/core/common/src/main/scala/org/typelevel/otel4s/KindTransformer.scala
index 427dd24d7..4f811f5c6 100644
--- a/core/common/src/main/scala/org/typelevel/otel4s/KindTransformer.scala
+++ b/core/common/src/main/scala/org/typelevel/otel4s/KindTransformer.scala
@@ -34,6 +34,7 @@ import cats.~>
 /** A utility for transforming the higher-kinded type `F` to another
   * higher-kinded type `G`.
   */
+@annotation.implicitNotFound("No transformer defined from ${F} to ${G}")
 trait KindTransformer[F[_], G[_]] {
 
   /** A higher-kinded function that lifts the kind `F` into a `G`.