title: pandas NamedAgg error: module 'pandas' has no attribute 'NamedAgg'
body: <p>I am trying to use the pandas NamedAgg function and am hitting a wall with it.
  I am getting the &quot;module 'pandas' has no attribute 'NamedAgg'&quot; error message.</p>
  <p>I am using the example in the documentation, copied and pasted, so I don't know what I am doing wrong. Any advice?</p>
  <p><a href="https://i.stack.imgur.com/oAjLQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oAjLQ.png" alt="pandas problem with NamedAgg" /></a></p>