DatabasePrincipalRole type  
Defines values for DatabasePrincipalRole. 
KnownDatabasePrincipalRole can be used interchangeably with DatabasePrincipalRole,
this enum contains the known values that the service supports.
Known values supported by the service
Admin 
Ingestor 
Monitor 
User 
UnrestrictedViewer 
Viewer
type DatabasePrincipalRole = string