/**
 * The deployment's unscoped client config (`GET /v1/config/client`) is read by
 * the provider's API-contract check, the conversation capability flags, the
 * session-proxy scope and the artifact viewer, usually in the same commit.
 * Reads through one client object share a request:
 *
 * - `joinClientConfigRead` returns the read in flight, or starts a new one. For
 *   callers that need the current config (the contract check before a live
 *   stream opens): they never receive an older, already settled result.
 * - `cachedClientConfigRead` also reuses the last successful read, for values
 *   that do not change while a page is open (capability flags).
 *
 * Workspace-scoped reads (`GET /v1/config/client?workspaceId=`, behind the
 * model catalog and voice availability) join the same way per workspace.
 *
 * A failed read is never kept, so the next caller reads again.
 */
type ClientConfigSource<T> = {
    getClientConfig: (options?: {
        workspaceId?: string;
    }) => Promise<T>;
};
export declare function joinClientConfigRead<T>(client: ClientConfigSource<T>, workspaceId?: string | undefined): Promise<T>;
export declare function cachedClientConfigRead<T>(client: ClientConfigSource<T>): Promise<T>;
/**
 * Read the deployment's client config (or one workspace's, with
 * `workspaceId`), joining a read of the same scope already in flight through
 * this client, so a screen whose parts each need the config sends one request.
 */
export declare function readClientConfig<T>(client: ClientConfigSource<T>, workspaceId?: string | undefined): Promise<T>;
export {};