[T] SdkType

type SdkType: 
  | SdkBuiltInType
  | SdkDateTimeType
  | SdkDurationType
  | SdkArrayType
  | SdkTupleType
  | SdkDictionaryType
  | SdkNullableType
  | SdkEnumType
  | SdkEnumValueType
  | SdkConstantType
  | SdkUnionType
  | SdkModelType
  | SdkCredentialType
  | SdkEndpointType;