export declare const TEMPLATE_SOURCE_TIMEOUT_CODE: 'template-source-timeout';
export declare const TEMPLATE_SOURCE_TOO_LARGE_CODE: 'template-source-too-large';
export declare function getExternalTemplateTimeoutMs(): number;
export declare function getExternalTemplateConfigMaxBytes(): number;
export declare function getExternalTemplatePackageJsonMaxBytes(): number;
export declare function getExternalTemplateMetadataMaxBytes(): number;
export declare function getExternalTemplateTarballMaxBytes(): number;
export declare function createExternalTemplateTimeoutError(label: string, timeoutMs: number): Error & {
    code: typeof TEMPLATE_SOURCE_TIMEOUT_CODE;
};
export declare function createExternalTemplateTooLargeError(label: string, maxBytes: number): Error & {
    code: typeof TEMPLATE_SOURCE_TOO_LARGE_CODE;
};
export declare function assertExternalTemplateFileSize(filePath: string, options: {
    label: string;
    maxBytes: number;
}): void;
export declare function withExternalTemplateTimeout<T>(label: string, task: Promise<T> | (() => Promise<T>), timeoutMs?: number): Promise<T>;
export declare function fetchWithExternalTemplateTimeout(input: string, options: {
    init?: RequestInit;
    label: string;
    timeoutMs?: number;
}): Promise<Response>;
export declare function readJsonResponseWithLimit(response: Response, options: {
    label: string;
    maxBytes: number;
}): Promise<Record<string, unknown>>;
export declare function readBufferResponseWithLimit(response: Response, options: {
    label: string;
    maxBytes: number;
}): Promise<Buffer>;