import { type APIConfig } from '../../types.js';
type ApiVersion = APIConfig['apiVersion'];
/**
 * Ensures that the provided API version string is in the correct format.
 * If the version does not start with 'v', it will be prefixed with 'v'.
 * If the version does not match the expected pattern, an error will be thrown.
 */
export declare function ensureApiVersionFormat(version: string): ApiVersion;
export {};
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