/**
 * YAML Output Utilities
 *
 * Shared utilities for outputting structured YAML results from CLI commands.
 * Ensures consistent formatting and proper stream flushing.
 *
 * @package @vibe-validate/cli
 */
/**
 * Output a result as YAML to stdout
 *
 * This function handles:
 * - Ensuring stderr is flushed before stdout
 * - Adding RFC 4627 YAML separator
 * - Writing pure YAML to stdout
 * - Waiting for stdout to flush before returning
 *
 * @param result - The result object to serialize as YAML
 *
 * @example
 * ```typescript
 * const result = { success: true, data: [...] };
 * await outputYamlResult(result);
 * ```
 */
export declare function outputYamlResult(result: unknown): Promise<void>;
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