code: public Swarm outboundSocketBinding(String socketBindingGroup, OutboundSocketBinding binding) {
          this.outboundSocketBindings.add(new OutboundSocketBindingRequest(socketBindingGroup, binding));
          return this;
      }
docs: Add an outbound socket-binding to the container.
  
  <p>In the event the specified {@code socketBindingGroup} does not exist, the socket-binding
  will be completely ignored.</p>
  
  TODO fix the above-mentioned issue.
  
  @param socketBindingGroup The name of the socket-binding group to attach a binding to.
  @param binding            The outbound socket-binding to add.
  @return This container.