Fix unchecked Result in get_llm_metadata()

Differential Revision: D99707695

Pull Request resolved: #18749

Author: kirklandsign

extension/llm/runner/llm_runner_helper.cpp

@@ -121,8 +121,9 @@ get_llm_metadata(tokenizers::Tokenizer* tokenizer, Module* module) {
     auto& value = pair.second;
 
     if (method_names.count(method_name)) {
-      auto get_result = module->get(method_name);
-      value = get_result.get().toScalar().to<decltype(metadata)::mapped_type>();
+      value = ET_UNWRAP(module->get(method_name))
+                  .toScalar()
+                  .to<decltype(metadata)::mapped_type>();
     } else {
       ET_LOG(
           Info,