EventHubDataFormat type   
Defines values for EventHubDataFormat. 
KnownEventHubDataFormat can be used interchangeably with EventHubDataFormat,
this enum contains the known values that the service supports.
Known values supported by the service
MULTIJSON 
JSON 
CSV 
TSV 
SCSV 
SOHSV 
PSV 
TXT 
RAW 
SINGLEJSON 
AVRO 
TSVE 
PARQUET 
ORC 
APACHEAVRO 
W3CLOGFILE
type EventHubDataFormat = string