title: Combine ggplotly and ggplot with patchwork?
body: <p>Is it possible to combine a ggplot<strong>ly</strong> and a ggplot with patchwork? </p>
  
  <h3>Example</h3>
  
  <p>This displays the two plots side by side</p>
  
  <pre><code>library(ggplot2)
  library(plotly)
  library(patchwork)
  
  a &lt;- ggplot(data.frame(1), aes(X1)) + geom_bar()
  b &lt;- ggplot(data.frame(1), aes(X1)) + geom_bar()
  a + b
  </code></pre>
  
  <p>But if we convert one to ggplotly, it errors</p>
  
  <pre><code>b  &lt;- ggplotly(b)
  a + b
  Error: Can't add `b` to a ggplot object.
  Run `rlang::last_error()` to see where the error occurred.
  </code></pre>
  
  <p>Is there a way to work around this? </p>