import { type ChatStreamWatchdogOptions } from "../../chat/stream-watchdog.js";
import type { AgentTraceAttributes } from "./trace-attributes.js";
import type { HostedChatExecutionRuntimeLogger } from "./chat-execution-runtime.js";
import type { PreparedHostedChatExecutionRuntimeOptions } from "./prepared-chat-execution.js";
/** Environment key for hosted chat stream idle timeout. */
export declare const VERYFRONT_CHAT_STREAM_IDLE_TIMEOUT_ENV = "VERYFRONT_CHAT_STREAM_IDLE_TIMEOUT_MS";
/** Environment key for hosted chat stream active tool timeout. */
export declare const VERYFRONT_CHAT_STREAM_TOOL_TIMEOUT_ENV = "VERYFRONT_CHAT_STREAM_TOOL_TIMEOUT_MS";
type ChatStreamWatchdogEnv = Record<string, string | undefined>;
/** Resolve Veryfront Cloud chat stream watchdog timeout overrides from environment values. */
export declare function resolveVeryfrontCloudChatStreamWatchdogOptions(env?: ChatStreamWatchdogEnv): Pick<ChatStreamWatchdogOptions, "idleTimeoutMs" | "toolRunningTimeoutMs">;
/** Derive hosted chat bootstrap watchdog options from resolved root stream watchdog options. */
export declare function resolveVeryfrontCloudStreamBootstrapWatchdogOptions(options: Pick<ChatStreamWatchdogOptions, "idleTimeoutMs" | "toolRunningTimeoutMs">): Pick<PreparedHostedChatExecutionRuntimeOptions, "streamBootstrapKeepaliveIntervalMs" | "streamBootstrapTimeoutMs">;
/** Input payload for create Veryfront Cloud prepared hosted chat execution runtime options. */
export type CreateVeryfrontCloudPreparedHostedChatExecutionRuntimeOptionsInput = {
    apiUrl: string | URL;
    tracer: PreparedHostedChatExecutionRuntimeOptions["tracer"];
    logger?: HostedChatExecutionRuntimeLogger;
    trace?: <TResult>(operationName: string, operation: () => Promise<TResult>) => Promise<TResult>;
    traceStream?: <TResult>(operation: () => Promise<TResult>) => Promise<TResult>;
    setActiveSpanAttributes?: (attributes: AgentTraceAttributes) => void;
    createRootStreamWatchdog?: PreparedHostedChatExecutionRuntimeOptions["createRootStreamWatchdog"];
    streamBootstrapKeepaliveIntervalMs?: PreparedHostedChatExecutionRuntimeOptions["streamBootstrapKeepaliveIntervalMs"];
    streamBootstrapTimeoutMs?: PreparedHostedChatExecutionRuntimeOptions["streamBootstrapTimeoutMs"];
};
/** Options accepted by create Veryfront Cloud prepared hosted chat execution runtime. */
export declare function createVeryfrontCloudPreparedHostedChatExecutionRuntimeOptions(input: CreateVeryfrontCloudPreparedHostedChatExecutionRuntimeOptionsInput): PreparedHostedChatExecutionRuntimeOptions;
export {};
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