import { EventEmitter } from '../../stencil-public-runtime';
/**
 * `mud-tab` — single tab item inside a `mud-tabs` tablist.
 *
 * Pattern A child: rendered as a slotted child of `mud-tabs`. Owns its own
 * `role="tab"` host with `aria-selected`, an optional leading icon, the
 * label, and an optional trailing numbered badge.
 *
 * The component is intentionally light: selection, focus management and
 * `aria-controls` wiring are all driven by the parent `mud-tabs` via
 * reflected attributes and DOM ids.
 *
 * @element mud-tab
 * @slot - Default slot — typically a text label. Falls back to the `label` prop.
 * @slot icon-start - Optional leading icon. Falls back to a `mud-icon` resolved from `iconName`.
 * @slot badge - Optional trailing badge. Falls back to a numbered badge when `badgeCount` is provided.
 */
export declare class MudTab {
    /** Identity of the tab. Used by the parent `mud-tabs` to track selection. */
    value: string;
    /** Whether this tab is the active one. Mirrors `aria-selected` and the indicator. */
    selected: boolean;
    /** Disables the tab. Suppresses click + keyboard activation. */
    disabled: boolean;
    /** Size rung. Reflected so styles cascade independently. */
    size: 'md' | 'sm';
    /** Optional plain-text label when no default slot content is provided. */
    label?: string;
    /** Optional leading icon name resolved against the `mud-icon` registry. */
    iconName?: string;
    /** Optional numbered badge displayed after the label. */
    badgeCount?: number;
    /** Id of the panel this tab controls. Set by the parent `mud-tabs`. */
    panelId?: string;
    private hasLabelSlot;
    host: HTMLMudTabElement;
    /**
     * Fires when the user clicks or keyboard-activates the tab. The parent
     * `mud-tabs` listens for this event to drive selection.
     */
    mudTabActivate: EventEmitter<{
        value: string;
    }>;
    private readonly instanceId;
    private readonly internalId;
    componentWillLoad(): void;
    private onLabelSlotChange;
    private handleClick;
    handleKeyDown(ev: KeyboardEvent): void;
    render(): any;
}