import * as lambda from '@aws-cdk/aws-lambda';
import { BuildOptions } from 'esbuild';
/**
 * Properties for a NodejsFunction
 */
export interface NodejsFunctionProps extends lambda.FunctionOptions {
    /**
     * The root of the lambda project. If you specify this prop, ensure that
     * this path includes `entry` and any module/dependencies used by your
     * function otherwise bundling will not be possible.
     *
     * @default = the closest path containing a .git folder
     */
    readonly rootDir?: string;
    /**
     * The name of the method within your code that Lambda calls to execute your function.
     *
     * The format includes the file name and handler function.
     * For more information, see https://docs.aws.amazon.com/lambda/latest/dg/lambda-nodejs.html.
     *
     * @default = 'index.handler'
     */
    readonly handler?: string;
    /**
     * The runtime environment. Only runtimes of the Node.js family are
     * supported.
     *
     * @default = `NODEJS_12_X` if `process.versions.node` >= '12.0.0',
     * `NODEJS_10_X` otherwise.
     */
    readonly runtime?: lambda.Runtime;
    /**
     * The list of modules that must be excluded from bundle and from externals.
     *
     * @default = ['aws-sdk']
     */
    readonly exclude?: string[];
    /**
     * Whether to use package manager to pack external modules or explicit name of a well known packager.
     *
     * @default = true // Determined based on what preference is set, and whether it's currently running in a yarn/npm script
     */
    readonly packager?: Packager | boolean;
    /**
     * The esbuild bundler specific options.
     *
     * @default = NodeMajorESMap {
     *   8 : 'es2016'
     *   9 : 'es2017'
     *   10: 'es2018'
     *   11: 'es2018'
     *   12: 'es2019'
     *   13: 'es2019'
     *   14: 'es2020'
     *   15: 'es2020'
     * >=16: 'esnext'
     * };
     */
    readonly esbuildOptions?: BuildOptions;
}
/**
 * Package manager to pack external modules.
 */
export declare enum Packager {
    NPM = "npm",
    YARN = "yarn"
}