/**
 * Scenario loader - loads test scenarios from YAML files.
 */
import type { LoadedScenarios } from './types.js';
/** Default file name for test scenarios */
export declare const DEFAULT_SCENARIOS_FILE: "bellwether-tests.yaml";
/**
 * Load test scenarios from a YAML file.
 */
export declare function loadScenariosFromFile(path: string): LoadedScenarios;
/**
 * Try to load scenarios from the default file in a directory.
 * Returns null if file doesn't exist.
 */
export declare function tryLoadDefaultScenarios(directory: string): LoadedScenarios | null;
/**
 * Generate a sample YAML template for test scenarios.
 */
export declare function generateSampleScenariosYaml(): string;
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