title: Function to convert plotly object to ggplot2?
body: <p>I know the function <code>ggplotly()</code> of the <code>plotly</code> package converts a <code>ggplot2</code> object into a <code>plotly</code> one, but is there a function that does the reverse? Converts a <code>plotly</code> object to a <code>ggplot2</code> one?</p>