src/vs/workbench/api/common/extHostTerminalService.ts/BaseExtHostTerminalService/$initEnvironmentVariableCollections
class BaseExtHostTerminalService:	public $initEnvironmentVariableCollections(collections: [string, ISerializableEnvironmentVariableCollection][]): void {
		collections.forEach(entry => {
			const extensionIdentifier = entry[0];
			const collection = new EnvironmentVariableCollection(entry[1]);
			this._setEnvironmentVariableCollection(extensionIdentifier, collection);
		});
	}