lib/foursquare2/users.rb
def user_friends(user_id, options={})
      response = connection.get do |req|
        req.url "users/#{user_id}/friends", options
      end
      return_error_or_body(response, response.body.response.friends)
    end
def user_friends(user_id, options={})
      response = connection.get do |req|
        req.url "users/#{user_id}/friends", options
      end
      return_error_or_body(response, response.body.response.friends)
    end
Get all friends for a given user.

 @param [String] user_id - The user to retrieve friends for.
 @param [Hash]  options
 @option options Integer :limit
 @option options Integer :offest - For paging through results