diff --git a/server.go b/server.go
index 23a1660057e8..05f0c6e2ad79 100644
--- a/server.go
+++ b/server.go
@@ -87,12 +87,13 @@ func init() {
 var statusOK = status.New(codes.OK, "")
 var logger = grpclog.Component("core")
 
-type methodHandler func(srv any, ctx context.Context, dec func(any) error, interceptor UnaryServerInterceptor) (any, error)
+// MethodHandler is a function type that processes a unary RPC method call.
+type MethodHandler func(srv any, ctx context.Context, dec func(any) error, interceptor UnaryServerInterceptor) (any, error)
 
 // MethodDesc represents an RPC service's method specification.
 type MethodDesc struct {
 	MethodName string
-	Handler    methodHandler
+	Handler    MethodHandler
 }
 
 // ServiceDesc represents an RPC service's specification.