import type { WireRejection } from "../adapters/validate.js";
import type { Backend } from "../providers/backend.js";
import { type CompositionalRoutingRuntime } from "../routing/eval-policy.js";
import type { EndpointAuthenticator, EndpointContext, EndpointModelCall, EndpointObserver } from "./endpoint-module.js";
import { GatewayEndpoint } from "./endpoint-module.js";
export type ChatOperation = "chat" | "cursor-chat" | "embeddings";
export type ChatEndpointDependencies = Readonly<{
    backend: Backend;
    compositionalRouting?: CompositionalRoutingRuntime;
    rejectInvalid(context: EndpointContext, rejection: WireRejection | undefined): boolean;
    attribution(requested: string | undefined): EndpointModelCall["attribution"];
}>;
export declare class ChatEndpoint extends GatewayEndpoint<ChatOperation> {
    constructor(authenticate: EndpointAuthenticator, dependencies: ChatEndpointDependencies, observe?: EndpointObserver);
    matches(method: string, path: string): boolean;
    protected decodeOperation(context: EndpointContext): ChatOperation;
}