revert change to packages/firebase/ai/index.ts

Author: dlarocque

packages/firebase/ai/index.ts

@@ -15,99 +15,4 @@
  * limitations under the License.
  */
 
-import { FirebaseApp } from '@firebase/app';
-import { Backend } from './backend';
-
-export * from './types';
-
-/**
- * An instance of the Firebase AI SDK.
- *
- * For more information, refer to the documentation for the new {@link AI} interface.
- *
- * @public
- */
-export type VertexAI = AI;
-
-/**
- * Options when initializing the Firebase AI SDK.
- *
- * @public
- */
-export interface VertexAIOptions {
-  location?: string;
-}
-
-/**
- * An instance of the Firebase AI SDK.
- *
- * Do not create this instance directly. Instead, use {@link getAI | getAI()}.
- *
- * @public
- */
-export interface AI {
-  /**
-   * The {@link @firebase/app#FirebaseApp} this {@link AI} instance is associated with.
-   */
-  app: FirebaseApp;
-  /**
-   * A {@link Backend} instance that specifies the configuration for the target backend,
-   * either the Gemini Developer API (using {@link GoogleAIBackend}) or the
-   * Vertex AI Gemini API (using {@link VertexAIBackend}).
-   */
-  backend: Backend;
-  /**
-   * The location configured for this AI service instance, relevant for Vertex AI backends.
-   *
-   * @deprecated use `AI.backend.location` instead.
-   */
-  location: string;
-}
-
-/**
- * An enum-like object containing constants that represent the supported backends
- * for the Firebase AI SDK.
- * This determines which backend service (Vertex AI Gemini API or Gemini Developer API)
- * the SDK will communicate with.
- *
- * These values are assigned to the `backendType` property within the specific backend
- * configuration objects ({@link GoogleAIBackend} or {@link VertexAIBackend}) to identify
- * which service to target.
- *
- * @public
- */
-export const BackendType = {
-  /**
-   * Identifies the backend service for the Vertex AI Gemini API provided through Google Cloud.
-   * Use this constant when creating a {@link VertexAIBackend} configuration.
-   */
-  VERTEX_AI: 'VERTEX_AI',
-
-  /**
-   * Identifies the backend service for the Gemini Developer API (via Google AI).
-   * Use this constant when creating a {@link GoogleAIBackend} configuration.
-   */
-  GOOGLE_AI: 'GOOGLE_AI'
-} as const; // Using 'as const' makes the string values literal types
-
-/**
- * Type alias representing valid backend types.
- * It can be either `'VERTEX_AI'` or `'GOOGLE_AI'`.
- *
- * @public
- */
-export type BackendType = (typeof BackendType)[keyof typeof BackendType];
-
-/**
- * Options for initializing the AI service using {@link getAI | getAI()}.
- * This allows specifying which backend to use (Vertex AI Gemini API or Gemini Developer API)
- * and configuring its specific options (like location for Vertex AI).
- *
- * @public
- */
-export interface AIOptions {
-  /**
-   * The backend configuration to use for the AI service instance.
-   */
-  backend: Backend;
-}
+export * from '@firebase/ai';