src/vs/platform/files/common/diskFileSystemProviderClient.ts/DiskFileSystemProviderClient/readFile
class DiskFileSystemProviderClient:	async readFile(resource: URI, opts?: IFileAtomicReadOptions): Promise<Uint8Array> {
		const { buffer } = await this.channel.call('readFile', [resource, opts]) as VSBuffer;

		return buffer;
	}