What is the correct time format of syncInterval (milliseconds or seconds)?

[ichabodcole]

Is the expected type format for syncInterval second or milliseconds? I believe it is seconds, but I'm seeing different formats depending on where I look. Below is the example given in the README for this repo, but in other docs it's in seconds.

export const turso = createClient({
    url: "file:local.db",
    syncUrl: process.env.TURSO_DATABASE_URL,
    authToken: process.env.TURSO_AUTH_TOKEN,
    syncInterval: 60000,
});