/**
 * Type definitions for call-media components.
 *
 * Types are imported directly from the SDK to stay in sync.
 */
import type { Call, CallParticipant, CallSelfParticipant, DeviceController, LayoutLayer } from '@signalwire/js';
export type { Call, CallParticipant, CallSelfParticipant, DeviceController, LayoutLayer };
export type Participant = CallParticipant;
/**
 * Helper to safely get self ID from a Call.
 * Call.self is typed as CallSelfParticipant | null.
 */
export declare function getSelfId(call: Call | undefined): string | undefined;
/**
 * Type-safe cast for participants array.
 * The SDK's Call.participants is typed as CallParticipant[], so this
 * provides a semantic helper for web-components that receive unknown[].
 */
export declare function castParticipants(participants: unknown[]): Participant[];
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