import Client from './Client';
/**
 * Creates and returns a public instance of the Client.
 * @param projectId The project ID for initialization.
 * @returns An initialized instance of Client or null if the projectId is invalid.
 */
export declare function getPublicClient(projectId: string): Client | null;
/**
 * Creates and returns an instance of Client configured with data extracted from the Supabase client.
 * @param supabase The initialized Supabase client.
 * @param projectId The project ID for initialization.
 * @returns An initialized instance of Client or null if necessary data can't be extracted.
 */
export declare function getClientFromSupabase(supabase: any, projectId: string, baseURL?: string): Client | null;
/**
 * Creates and returns an instance of OpenAIClient configured with data extracted from Firebase.
 * @param firebaseAuth The Firebase authentication object.
 * @returns An initialized instance of OpenAIClient or null if necessary data can't be extracted.
 */
export declare function getClientFromFirebase(firebaseAuth: any, projectId: string): Client | null;