[Required] true [Type] string [Details] The unique identifier of the event source. This identifies the Platform Event I/O Processor that sent this event. [Attribute Name] 
eventsource
n a m e
c o n f e r e n c e i d
r e a s o n
e v e n t i d
e v e n t s o u r c e
e v e n t s o u r c e t y p e