From ee942bed8a8c31101474c28f92b1cfede2f9d629 Mon Sep 17 00:00:00 2001
From: Rebecca Stevens <rebecca.stevens@outlook.co.nz>
Date: Fri, 11 Aug 2023 21:58:30 +1200
Subject: [PATCH] fix: update UnitConversionRate type and create
 UnknownUnitConversionRate type

---
 src/core.ts  | 13 ++++++++++++-
 src/index.ts |  1 +
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/core.ts b/src/core.ts
index f902e077..6e71aeb8 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -58,7 +58,9 @@ export type UnitFrom<
  *
  * @group Unit Generators
  */
-export type UnitConversionRate<M extends UnitSubvalues> = Unit<{}, M>;
+export type UnitConversionRate<M extends UnitSubvalues> = number & {
+  readonly __uom_types__unit_meta: UnitMeta<M>;
+};
 
 /**
  * Create a {@link UnitConversionRate} from already existing {@link UnitMeta}.
@@ -107,6 +109,15 @@ export type UnknownAbstractUnit = number & {
   readonly __uom_types__unit_class: UnknownUnitClass;
 };
 
+/**
+ * An {@link UnitConversionRate} that we don't know anything about.
+ *
+ * @group Unknown Units
+ */
+export type UnknownUnitConversionRate = number & {
+  readonly __uom_types__unit_meta: UnknownUnitMeta;
+};
+
 /**
  * A {@link UnitClass} that we don't know anything about.
  *
diff --git a/src/index.ts b/src/index.ts
index 533edde7..4207d926 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -15,6 +15,7 @@ export type {
   UnknownAbstractUnit,
   UnknownUnit,
   UnknownUnitClass,
+  UnknownUnitConversionRate,
   UnknownUnitMeta,
 } from "./core";
 export type {