import type { RumUser } from './shared-impl';
export type { RumUser } from './shared-impl';
/**
 * Sets the session user on the Datadog RUM SDK.
 *
 * - **SDK initialized via `init`**: only the bundle whose `init` call
 *   initialized the SDK may set the user; calls from any other bundle are
 *   silent no-ops.
 * - **SDK initialized directly via `datadogRum.init`**: no gating is applied.
 * - **Neither initialized**: no-op.
 */
export declare function setUser(user: RumUser): void;
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