import SGPClient from 'sgp';

const client = new SGPClient({
  apiKey: 'My API Key',
});

const theme = await client.themes.retrieve('theme_id');

console.log(theme.id);

{
  "id": "<string>",
  "title": "<string>",
  "theme_vars": {
    "accentPrimary": "<string>",
    "accentSecondary": "<string>",
    "background": "<string>",
    "foreground": "<string>"
  },
  "logo_blob": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "archived_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "created_by_user_id": "<string>",
  "created_by_identity_type": "user",
  "account_id": "<string>"
}