add license header

Author: dlarocque

packages/ai/src/types/live-responses.ts

@@ -1,7 +1,23 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 import { Content, GenerativeContentBlob, Part } from './content';
 import { LiveGenerationConfig, Tool, ToolConfig } from './requests';
 
-
 /**
  * User input that is sent to the model.
  *
@@ -41,4 +57,3 @@ export interface _LiveClientSetup {
     systemInstruction?: string | Part | Content;
   };
 }
-