def purchase(release_id, track_id, price, token, options={})
      warn "[DEPRECATION] 'purchase' is deprecated.  Please use 'purchase_item' instead."
      purchase_item(release_id, track_id, price, token, options)
    end
def purchase(release_id, track_id, price, token, options={})
      warn "[DEPRECATION] 'purchase' is deprecated.  Please use 'purchase_item' instead."
      purchase_item(release_id, track_id, price, token, options)
    end
<b>DEPRECATED:</b> Please use <tt>purchase_item</tt> instead.