> ISPO SDK documentation. [HTML](https://ispo.ai/docs/variables/core.Supporting_types.entityPrivateContentAppendArgsSchema.html) · [Documentation index](https://ispo.ai/docs/llms.txt)

# Variable entityPrivateContentAppendArgsSchema`Const`

```typescript
entityPrivateContentAppendArgsSchema: ZodObject<
    {
        bytes: ZodCustom<Uint8Array<ArrayBuffer>, Uint8Array<ArrayBuffer>>;
        entityId: ZodString;
        idempotencyKey: ZodOptional<ZodString>;
        mediaType: ZodString;
        metadata: ZodOptional<
            ZodRecord<
                ZodString,
                ZodType<
                    CloudSyncJsonValue,
                    unknown,
                    $ZodTypeInternals<CloudSyncJsonValue, unknown>,
                >,
            >,
        >;
        slotId: ZodString;
        type: ZodString;
    },
    $strict,
> = ...
```

Types: [CloudSyncJsonValue](../types/core.Supporting_types.CloudSyncJsonValue.md)

Local postMessage uses structured-cloned Uint8Array; hosted bulk is later.