/**
 * Strip trailing commas from JSON content.
 * Removes commas that appear before closing brackets/braces,
 * while preserving commas inside strings.
 */
export declare function stripTrailingCommas(content: string): string;
/**
 * Parse JSON or JSONC content preserving comments via comment-json.
 */
export declare function parseJsonOrJsonc(content: string, isJsonc: boolean): unknown;
/**
 * Stringify data back to JSONC while preserving attached comments.
 */
export declare function stringifyWithComments(data: unknown): string;
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