Use the BrokerClient.getEventTypeDef method to obtain a single event type definition, given an event type name.

Use the BrokerClient.getEventTypeDefs method to obtain multiple event type definitions using a list of event type names. You can obtain a list of event type names by using the BrokerClient.getEventTypeNames method.

Use the BrokerEvent.getTypeDef method to obtain the a single event type definition for an event.

Use the BrokerClient.getCanPublishTypeDefs method to obtain all the event type definitions which a particular Broker client has permission to publish.

Use the BrokerClient.getCanSubscribeTypeDefs method to obtain all the event type definitions to which a particular Broker client has permission to subscribe.