import { type ExtensionAPI } from "@earendil-works/pi-coding-agent";
import { type Api, type Model, type TranscriptContext } from "@earendil-works/pi-ai";
import type { AgentMessage } from "@earendil-works/pi-agent-core";
import type { AdapterState } from "../../adapter/activation/state.ts";
import type { CodexUsageRecorder, OpenAICodexStreamOptions, ResponsesBody } from "../../providers/openai-codex/types.ts";
import type { createLazyCodexDiagnostics } from "../../diagnostics/lazy.ts";
import type { CodexContext, CodexPrewarmResult } from "../runtime.ts";
export declare function createCodexExtensionTransport(pi: ExtensionAPI, state: AdapterState, diagnostics: ReturnType<typeof createLazyCodexDiagnostics>, projectContextMessages: (ctx: CodexContext, messages?: readonly AgentMessage[]) => AgentMessage[], recordUsage?: CodexUsageRecorder): {
    prepareTurn(ctx: import("@earendil-works/pi-coding-agent").ExtensionContext): void;
    suspendOrdinaryPrewarm(): void;
    finishTurn(): void;
    beforeRequestSend(model: Model<Api>, context: TranscriptContext, body: ResponsesBody, options: OpenAICodexStreamOptions | undefined, responsesLite: boolean): Promise<void>;
    startKeepalivePrewarm(ctx: import("@earendil-works/pi-coding-agent").ExtensionContext): Promise<CodexPrewarmResult> | undefined;
    armCacheKeepalive(ctx: import("@earendil-works/pi-coding-agent").ExtensionContext): void;
    cancelCacheKeepalive(): void;
    resetTransport(sessionId: string | undefined): void;
    resetTransportForContextWindow(sessionId: string): void;
    shutdownTransport(sessionId: string): void;
};