For read operations: the original category level from the provider. For write operations: fallback value used when value is omitted or "unmapped_value". You must ensure this matches the provider's format.
CreateCategoriesApiModelLevelSourceValueUnion.CreateStr(/* values here */);CreateCategoriesApiModelLevelSourceValueUnion.CreateNumber(/* values here */);CreateCategoriesApiModelLevelSourceValueUnion.CreateBoolean(/* values here */);CreateCategoriesApiModelLevelSourceValueUnion.CreateCreateCategoriesApiModelSourceValueLevel(/* values here */);CreateCategoriesApiModelLevelSourceValueUnion.CreateArrayOfAny(/* values here */);