import type { AIProvider, JsonObject, Message, ModelConfig, ProviderEvent, ProviderRequest } from "@arnilo/prism";
import { type CredentialValueSource } from "@arnilo/prism";
/** Official international Chat Completions base (China `open.bigmodel.cn` remains overridable). */
export declare const ZAI_DEFAULT_BASE_URL = "https://api.z.ai/api/paas/v4";
export interface ZaiProviderOptions {
    readonly id?: string;
    readonly baseUrl?: string;
    readonly apiKey?: CredentialValueSource;
    readonly fetch?: typeof fetch;
}
export declare function createZaiProvider(options?: ZaiProviderOptions): AIProvider;
export declare function zaiBody(request: ProviderRequest): JsonObject;
export declare function zaiEvents(body: ReadableStream<Uint8Array>, signal?: AbortSignal): AsyncIterable<ProviderEvent>;
/**
 * Serialize Prism messages for Z.AI Chat Completions.
 * Prior thinking blocks become `reasoning_content` when Preserved Thinking is active;
 * otherwise they are dropped (never flattened into visible text).
 * @see https://docs.z.ai/guides/capabilities/thinking-mode
 */
export declare function toZaiMessage(message: Message, model: ModelConfig, preserveThinking?: boolean): JsonObject;