/**
 * RoleSelector — a trigger button and a single-select listbox of roles.
 *
 * Implements keyboard support per the WAI-ARIA listbox pattern, mirroring the
 * roving-focus approach in `ui/Dropdown.svelte`: the trigger opens on
 * ArrowDown/ArrowUp/Enter/Space; the open list moves focus onto the selected
 * (or first) option; ArrowUp/Down/Home/End move roving focus; Enter/Space pick
 * the focused option; Escape closes and refocuses the trigger; Tab closes.
 * Click-outside also dismisses.
 */
import type { Role } from '@happyvertical/smrt-types';
export interface Props {
    roles: Role[];
    value?: string | null;
    onchange: (roleId: string) => void;
    disabled?: boolean;
    placeholder?: string;
    showDescription?: boolean;
}
declare const RoleSelector: import("svelte").Component<Props, {}, "">;
type RoleSelector = ReturnType<typeof RoleSelector>;
export default RoleSelector;
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