/**
 * <aggregation-config> - configuration form for multi-file aggregation.
 *
 * Attributes:
 *   initial-config   JSON string of Partial<AggregationConfigValues>
 *
 * Events fired:
 *   config-change    CustomEvent<AggregationConfigValues>
 *
 * Styled with Bootstrap utility classes - host app must provide Bootstrap CSS.
 * Renders once; uses event delegation + targeted DOM updates (no re-renders on input change).
 */
export declare class AggregationConfigElement extends HTMLElement {
    private _config;
    private _showAdvanced;
    connectedCallback(): void;
    disconnectedCallback(): void;
    private _handleChange;
    private _handleClick;
    private _emitChange;
    /** Show/hide conditional fields without re-rendering. */
    private _updateConditionals;
    private _render;
}
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