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