in src/Result.ts [110:121]
static _handleBlob(ionBinary: IonBinary): Buffer|Uint8Array|string {
if (ionBinary instanceof Buffer) {
return <Buffer> ionBinary;
}
if (ionBinary instanceof Uint8Array) {
return <Uint8Array> ionBinary;
}
if (typeof ionBinary === "string") {
return <string> ionBinary;
}
throw new ClientError("Unexpected Blob returned from QLDB.");
}