title: ImportError: cannot import name Multipoint
body: <p>I'm trying to import Multipoint from shapely.geometry like so:</p>
  
  <pre><code>from shapely.geometry import Multipoint
  state = Multipoint(((36.977397, -102.985840),(37.004892, -109.050293)(31.805382, -109.006348),(31.861385, -103.095703))).convex_hull
  
  point.within(polygon)
  </code></pre>
  
  <p>But I get the following error:</p>
  
  <pre><code>ImportError: cannot import name Multipoint
  </code></pre>
  
  <p>Anyone know what's causing this error?</p>