fix: deploymentModel arg

Author: TomerAberbach

openai-java-core/src/main/kotlin/com/openai/services/async/beta/AssistantServiceAsyncImpl.kt

@@ -108,7 +108,11 @@ internal constructor(
                 .putAllHeaders(DEFAULT_HEADERS)
                 .body(json(clientOptions.jsonMapper, params._body()))
                 .build()
-                .prepareAsync(clientOptions, params, params.model().orElse(null))
+                .prepareAsync(
+                    clientOptions,
+                    params,
+                    params.model().map { it.toString() }.orElse(null)
+                )
         return request
             .thenComposeAsync { clientOptions.httpClient.executeAsync(it, requestOptions) }
             .thenApply { response ->

openai-java-core/src/main/kotlin/com/openai/services/blocking/beta/AssistantServiceImpl.kt

@@ -101,7 +101,7 @@ internal constructor(
                 .putAllHeaders(DEFAULT_HEADERS)
                 .body(json(clientOptions.jsonMapper, params._body()))
                 .build()
-                .prepare(clientOptions, params, params.model().orElse(null))
+                .prepare(clientOptions, params, params.model().map { it.toString() }.orElse(null))
         val response = clientOptions.httpClient.execute(request, requestOptions)
         return response
             .use { updateHandler.handle(it) }