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/// <reference types="node" />
declare namespace pathKey {
interface Options {
/**
Use a custom environment variables object. Default: [`process.env`](https://nodejs.org/api/process.html#process_process_env).
*/
readonly env?: {[key: string]: string | undefined};
/**
Get the PATH key for a specific platform. Default: [`process.platform`](https://nodejs.org/api/process.html#process_process_platform).
*/
readonly platform?: NodeJS.Platform;
}
}
declare const pathKey: {
/**
Get the [PATH](https://en.wikipedia.org/wiki/PATH_(variable)) environment variable key cross-platform.
@example
```
import pathKey = require('path-key');
const key = pathKey();
//=> 'PATH'
const PATH = process.env[key];
//=> '/usr/local/bin:/usr/bin:/bin'
```
*/
(options?: pathKey.Options): string;
// TODO: Remove this for the next major release, refactor the whole definition to:
// declare function pathKey(options?: pathKey.Options): string;
// export = pathKey;
default: typeof pathKey;
};
export = pathKey;
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