import type { InteropMode, ModuleType } from 'module-compat';
/**
 * Options for call/callSync and bind/bindSync functions.
 */
export type CallOptions = {
    /** Worker uses callback style (fn(...args, callback)) rather than returning value/Promise */
    callbacks?: boolean;
    /** Apply spawn options for child process env setup (default: true) */
    spawnOptions?: boolean;
    /** Environment variables (default: process.env) */
    env?: NodeJS.ProcessEnv;
    /** Module type detection: 'auto' (default), 'module', or 'commonjs' */
    moduleType?: 'auto' | ModuleType;
    /** How to handle ESM default exports: 'default' (default), 'raw', or 'typescript' */
    interop?: InteropMode;
};
/**
 * Options for bind/bindSync functions.
 */
export type BindOptions = CallOptions;
/**
 * Callback function signature for caller callbacks.
 */
export type CallerCallback = (err: unknown, result?: unknown) => void;
/**
 * Function returned by bindSync that calls the worker synchronously.
 */
export type BoundSyncCaller = (...args: unknown[]) => unknown;
/**
 * Function returned by bind that calls the worker with callback or Promise.
 */
export type BoundAsyncCaller = (...args: unknown[]) => unknown;
/**
 * @deprecated Use BoundSyncCaller or BoundAsyncCaller instead
 */
export type BoundCaller = BoundSyncCaller;