src/vs/platform/extensionManagement/common/extensionGalleryService.ts/AbstractExtensionGalleryService/getCoreTranslation
class AbstractExtensionGalleryService:	async getCoreTranslation(extension: IGalleryExtension, languageId: string): Promise<ITranslation | null> {
		const asset = extension.assets.coreTranslations.filter(t => t[0] === languageId.toUpperCase())[0];
		if (asset) {
			const context = await this.getAsset(asset[1]);
			const text = await asTextOrError(context);
			return text ? JSON.parse(text) : null;
		}
		return null;
	}