extensions/npm/src/npmScriptLens.ts/NpmScriptLensProvider/constructor
class NpmScriptLensProvider:	constructor() {
		this.subscriptions.push(
			workspace.onDidChangeConfiguration(evt => {
				if (evt.affectsConfiguration(Constants.ConfigKey)) {
					this.lensLocation = getFreshLensLocation();
					this.changeEmitter.fire();
				}
			}),
			languages.registerCodeLensProvider(
				{
					language: 'json',
					pattern: '**/package.json',
				},
				this,
			)
		);
	}