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