How to use the binary.fromRaw function in binary

function normalizeBlob(body) {
    var type = typeof body;
    if (type === "string") {
      return binary.fromRaw(body);
    }
    if (body && type === "object") {
      if (body.constructor.name === "ArrayBuffer") body = new Uint8Array(body);
      if (typeof body.length === "number") {
        return body;//binary.toRaw(body);
      }
    }
    throw new TypeError("Blob body must be raw string, ArrayBuffer or byte array");
  }