5 * A writable stream where phridge will pipe PhantomJS' stdout messages.
7 * @type {stream.Writable}
8 * @default process.stdout
10 stdout: process.stdout,
13 * A writable stream where phridge will pipe PhantomJS' stderr messages.
15 * @type {stream.Writable}
16 * @default process.stderr
18 stderr: process.stderr