Contentful API Not Returning Entry Status (Published/Draft) for Variants

[nadeemtuvoc]

I'm using the Contentful Preview API to fetch entries of content type variant with the following code:

export const previewClient = createClient({
    space: process.env.CONTENTFUL_SPACE_ID!,
    accessToken: process.env.CONTENTFUL_PREVIEW_ACCESS_TOKEN!,
    host: "preview.contentful.com",
    environment: process.env.CONTENTFUL_ENVIRONMENT,
});

const response = await previewClient.getEntries({
    content_type: "variant",
    "fields.gemistProductId[in]": productIds.join(","),
});

Issue:
The API response does not include sys.publishedAt. So, I am not able to identify entries are in a published or draft state. I would like to retrieve this status as part of the entry details.

Questions:
How can I identify the published or draft status for the entries using the Preview API?
Is there any additional configuration required to access this information?

I am using "contentful": "^10.15.1"