import * as z from "zod/v4";
import { ClosedEnum } from "../types/enums.js";
import { AnthropicCacheControlTtl } from "./anthropiccachecontrolttl.js";
export declare const AnthropicCacheControlDirectiveType: {
    readonly Ephemeral: "ephemeral";
};
export type AnthropicCacheControlDirectiveType = ClosedEnum<typeof AnthropicCacheControlDirectiveType>;
/**
 * Enable automatic prompt caching. When set at the top level, the system automatically applies cache breakpoints to the last cacheable block in the request. Currently supported for Anthropic Claude models.
 */
export type AnthropicCacheControlDirective = {
    ttl?: AnthropicCacheControlTtl | undefined;
    type: AnthropicCacheControlDirectiveType;
};
/** @internal */
export declare const AnthropicCacheControlDirectiveType$outboundSchema: z.ZodEnum<typeof AnthropicCacheControlDirectiveType>;
/** @internal */
export type AnthropicCacheControlDirective$Outbound = {
    ttl?: string | undefined;
    type: string;
};
/** @internal */
export declare const AnthropicCacheControlDirective$outboundSchema: z.ZodType<AnthropicCacheControlDirective$Outbound, AnthropicCacheControlDirective>;
export declare function anthropicCacheControlDirectiveToJSON(anthropicCacheControlDirective: AnthropicCacheControlDirective): string;
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