Have no idea how, but seems like ro
object was "transfered" into a hash that has been sent a parsed_response
method.
In Rails 2.3@ruby 1.8 undefined method for object raises an exception.
Besides, docs stay only for calling try on nil object and nothing about the object that doesn't have a specific method:
Unlike that method however, a NoMethodError exception will not be raised and nil will be returned instead, if the receiving object is a nil object or NilClass.