import type { createSubsystemLogger } from "../logging/subsystem.js";
type SubsystemLogger = ReturnType<typeof createSubsystemLogger>;
type ModelTransportDebugEnv = NodeJS.ProcessEnv;
export type ModelPayloadDebugMode = "off" | "summary" | "tools" | "full-redacted";
export type ModelSseDebugMode = "off" | "events" | "peek";
export declare function resolveModelPayloadDebugMode(env?: ModelTransportDebugEnv): ModelPayloadDebugMode;
export declare function resolveModelSseDebugMode(env?: ModelTransportDebugEnv): ModelSseDebugMode;
export declare function isModelTransportDebugEnabled(env?: ModelTransportDebugEnv): boolean;
export declare function isCodeModeDebugEnabled(env?: ModelTransportDebugEnv): boolean;
export declare function emitModelTransportDebug(log: SubsystemLogger, message: string): void;
export {};