title: foursquare venues.json structure
body: <p>Might be missing something but, how can I get the structure of a Foursquare response for a request like <a href="https://api.foursquare.com/v2/venues/search?ll=" rel="nofollow">https://api.foursquare.com/v2/venues/search?ll=</a>...</p>
  
  <p>I want to put the response into a data structure, but most venues aren't fully populated with data.  For example, many venues data have contact info so the contact field is just and empty dict.</p>
  
  <p>I want to know all the fields Foursquare could possibly send back to me for a given venue.</p>