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11.1.1 Browser Controller Objects

Browser controllers provide two methods which parallel two of the module-level convenience functions:

`open`(url[, new])
  Display url using the browser handled by this controller. If new is true, a new browser window is opened if possible.

`open_new`(url)
  Open url in a new window of the browser handled by this controller, if possible, otherwise, open url in the only browser window.