RequestWithOptions

Name	Type
`callback`	`(response: RequestResponse) => void`
`compression`	`Compression \| 'best-available'`
`data`	`Record<string, any> \| Record<string, any>[]`
`disableTransport`	`('XHR' \| 'fetch' \| 'sendBeacon')[]`
`fetchOptions`	`{ cache?: RequestInit['cache']; next?: NextOptions; }`
`fireCallbackOnDrop`	`boolean`
When set, `_send_request` invokes `callback` with a synthetic response on the paths that otherwise drop a request without notifying the caller (client not loaded, server rate limit). Opt-in so existing callers keep their current behavior; the logs pipeline uses it to keep records for a later retry instead of losing them silently.
`headers`	`Record<string, any>`
`method`	`'POST' \| 'GET'`
`noRetries`	`boolean`
`timeout`	`number`
`timestampMode`	`'body' \| 'capture-body' \| 'query'`
Controls where the request dispatch time is sent. - `body` adds ISO `sent_at` to the existing request object (for example, flags). - `capture-body` wraps events in `{ api_key, batch, sent_at }` with an ISO timestamp. - `query` adds numeric `sent_at` to POST requests or cache-busting `_` to GET requests.
`transport`	`'XHR' \| 'fetch' \| 'sendBeacon'`
`url`	`string`
`urlQueryArgs`	`{ compression: Compression; }`