get_bundle_contents
This function returns the list of resources and coupons included in a bundle
 resource_id int required
ID of the resource
 method string required
must be set to 
get_bundle_contents language string optional
by specifying a 2-letter (ISO 639-1) language code (all capital letters e.g. EN, DE, FR, ES, IT) you can change the language of the text values returned
 api_key string required
your API key - 
Click here to get your key. If your API key uses a hash key, you must also include the parameters 
hash_key and hash_timestamp.
 bundle_resources array
Array with the following keys: resource_id (ID of the included resource), resource_name, quantity_used, time_offset (in hours), duration (in hours), internal_price (set to 0 if not used)
 bundle_coupons array
Array of coupon IDs included in the bundle
Click here to test this function in the API playground.