code: @Nullable
      public Relationship delivers(@Nonnull Person destination, String description, String technology, InteractionStyle interactionStyle) {
          return uses(destination, description, technology, interactionStyle);
      }
docs: Adds a unidirectional relationship between this element and a person.
  
  @param destination      the target of the relationship
  @param description      a description of the relationship (e.g. "sends e-mail to")
  @param technology       the technology details (e.g. JSON/HTTPS)
  @param interactionStyle the interaction style (sync vs async)
  @return the relationship that has just been created and added to the model