/**
 * Config list-keys subcommand - lists all available configuration keys
 */
/**
 * Options for listConfigKeys
 */
export interface ListKeysOptions {
    /** Filter by section (e.g., "citation", "cli") */
    section?: string;
}
/**
 * List all available configuration keys with their types and descriptions.
 * Output format: key  type  description (aligned columns)
 */
export declare function listConfigKeys(options: ListKeysOptions): string;
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