# Functions
NewDeliverServer constructing deliver.
NewHandlerImpl creates an implementation of the Handler interface.
# Structs
DeliverServer a polymorphic structure to support generalization of this handler to be able to deliver different type of responses.
# Interfaces
DeliverSupport defines the interface a handler must implement for delivery services.
Handler defines an interface which handles Deliver requests.
Support provides the backing resources needed to support deliver on a chain.
SupportManager provides a way for the Handler to look up the Support for a chain.
# Type aliases
PolicyChecker checks the envelope against the policy logic supplied by the function.