Defines a Record that contains the necessary information to perform a step. The :work key defines the primary function to be run during the step. It should do the actual API call, GenServer call, or DB query. The :rollback key defines how the operation should be rolled back in the case of errors. It recieves a single arguement used to identify the resource to be reverted. The :parser key determines some form of identifier that the rollback function will recieve as it's argument. Can be anything as long as the rollback can use it.