/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Handles slash command conflict events and provides user feedback.
 *
 * This handler batches multiple conflict events into a single notification
 * block per command name to avoid UI clutter during startup or incremental loading.
 */
export declare class SlashCommandConflictHandler {
    private notifiedConflicts;
    private pendingConflicts;
    private flushTimeout;
    constructor();
    start(): void;
    stop(): void;
    private handleConflicts;
    private scheduleFlush;
    private flush;
    /**
     * Emits a grouped notification for multiple conflicts sharing the same name.
     */
    private emitGroupedFeedback;
    /**
     * Emits a descriptive notification for a single command conflict.
     */
    private emitSingleFeedback;
    private capitalize;
    /**
     * Returns a human-readable description of a command's source.
     */
    private getSourceDescription;
}