import type { TriggerChannelActionRequest, TriggerChannelActionResponse, TriggerChannelRuntimeEventRequest, TriggerChannelRuntimeEventResponse } from "./types.js";
export declare const LANGSMITH_MDA_TRIGGER_SERVER_URL_ENV = "LANGSMITH_MDA_TRIGGER_SERVER_URL";
export declare const TRIGGER_HTTP_TIMEOUT_MS = 30000;
type TriggerClientOperation = "actions" | "events";
export interface TriggerClientLike {
    postAction(channelId: string, body: TriggerChannelActionRequest): Promise<TriggerChannelActionResponse>;
    postRuntimeEvent(channelId: string, body: TriggerChannelRuntimeEventRequest): Promise<TriggerChannelRuntimeEventResponse>;
}
export interface TriggerClientOptions {
    userId?: string;
    env?: NodeJS.ProcessEnv;
    fetch?: typeof fetch;
    timeoutMs?: number;
}
/** Fixed-message callback error safe for logs and diagnostics. */
export declare class TriggerClientError extends Error {
    readonly operation: TriggerClientOperation;
    readonly status?: number | undefined;
    constructor(operation: TriggerClientOperation, status?: number | undefined);
}
/** Minimal Trigger Server client authenticated by the hosted server key. */
export declare class TriggerClient implements TriggerClientLike {
    #private;
    constructor(options?: TriggerClientOptions);
    postAction(channelId: string, body: TriggerChannelActionRequest): Promise<TriggerChannelActionResponse>;
    postRuntimeEvent(channelId: string, body: TriggerChannelRuntimeEventRequest): Promise<TriggerChannelRuntimeEventResponse>;
}
export declare function createTriggerClient(options?: TriggerClientOptions): TriggerClient | undefined;
export {};
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