From dc81339ef1380896f3b2d2dfd5df3afef8271d3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E3=81=B5=E3=81=81?=
 <34892635+fa0311@users.noreply.github.com>
Date: Fri, 7 Jun 2024 17:44:39 +0900
Subject: [PATCH] [typescript-fetch] fix #18876 Type error in oneOf when
 legacyDiscriminatorBehavior is false (#18877)

---
 .../src/main/resources/typescript-fetch/modelOneOf.mustache     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/openapi-generator/src/main/resources/typescript-fetch/modelOneOf.mustache b/modules/openapi-generator/src/main/resources/typescript-fetch/modelOneOf.mustache
index 37018c1172c0..0e65dec85ea9 100644
--- a/modules/openapi-generator/src/main/resources/typescript-fetch/modelOneOf.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-fetch/modelOneOf.mustache
@@ -24,7 +24,7 @@ export function {{classname}}FromJSONTyped(json: any, ignoreDiscriminator: boole
     switch (json['{{discriminator.propertyBaseName}}']) {
 {{#discriminator.mappedModels}}
         case '{{mappingName}}':
-            return Object.assign({}, {{modelName}}FromJSONTyped(json, true), { {{discriminator.propertyName}}: '{{mappingName}}' });
+            return Object.assign({}, {{modelName}}FromJSONTyped(json, true), { {{discriminator.propertyName}}: '{{mappingName}}' } as const);
 {{/discriminator.mappedModels}}
         default:
             throw new Error(`No variant of {{classname}} exists with '{{discriminator.propertyName}}=${json['{{discriminator.propertyName}}']}'`);