import type { ContentBlockParam, MessageParam } from '@anthropic-ai/sdk/resources';
export declare function isCacheEnabled(opts?: {
    baseUrl?: string;
}): boolean;
export declare function getCacheTtl(): '5m' | '1h';
export declare function isExtendedCacheTtlActive(opts?: {
    baseUrl?: string;
}): boolean;
export declare function withSystemBreakpoint(blocks: ContentBlockParam[], ttl: '5m' | '1h'): ContentBlockParam[];
export declare function withMessagesBreakpoint(messages: MessageParam[], ttl: '5m' | '1h'): MessageParam[];