Writing content to file about cmisjs HOT 2 OPEN

session.setCredentials("admin", "admin").loadRepositories()
    .then(() => session.query(`
        SELECT *
        FROM cmis:document WHERE cmis:name LIKE '%test%'`)
    )
    .then(data => {
        return data.results[0].succinctProperties["cmis:objectId"];
    })
    .then(objectId => {
        return session.getContentStream(objectId);
    })
    .then(res => {
        return (res.body as any) as PassThrough;
    }).then(text => {
        var writeStream = fs.createWriteStream("file1.png", {encoding:"binary"});
        text.pipe(writeStream);
    });