PerformanceTier type
Performance tier of a storage class
KnownPerformanceTier can be used interchangeably with PerformanceTier,
this enum contains the known values that the service supports.
Known values supported by the service
Undefined: Undefined Performance Tier
Basic: Basic Performance Tier
Standard: Standard Performance Tier
Premium: Premium Performance Tier
Ultra: Ultra Performance Tier
type PerformanceTier = string