import MessageBus from '../../utility/message-bus/messageBus';
import type { TectonPlatformControls } from '../../types/setup';
/**
 * Sets up the `sendModal` capability for displaying modal dialogs.
 * Registers a request/response handler that shows modals and returns user action names.
 *
 * @param messageBus - The platform message bus for feature communication
 * @param platformControlBus - Platform control bus with handler implementations
 * @param capabilities - Set to populate with available capability names
 * @param teardowns - Array to collect cleanup functions for unsubscribing
 *
 * @internal
 */
export default function showModalSetup(messageBus: MessageBus, platformControlBus: TectonPlatformControls, capabilities: Set<string>, teardowns: (() => void)[]): void;
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