import type { ParamsConfig } from "./types.js";
/**
 * Derive the expected params file path from an eval file path.
 *
 * Given `tests/evals/my-test/eval.yaml`, returns
 * `tests/evals/my-test/eval.params.yaml`.
 *
 * Handles both `.yaml` and `.yml` extensions.
 */
export declare function getParamsFilePath(evalFilePath: string): string;
/**
 * Load and validate a params file. Returns `undefined` if the file does not exist.
 *
 * Throws on validation errors (malformed structure, invalid types, etc.).
 */
export declare function loadParamsFile(filePath: string): Promise<ParamsConfig | undefined>;
/**
 * Parse and validate params YAML content with custom `!zip` tag support.
 */
export declare function parseAndValidateParams(raw: string, filePath?: string): ParamsConfig;
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