Function start

apps/sim/app/api/table/[tableId]/import/route.test.ts:247–250

(controller)

      headers: new Headers({ 'content-type': `multipart/form-data; boundary=${boundary}` }),
      body: new ReadableStream<Uint8Array>({
        start(controller) {
          controller.enqueue(new Uint8Array(body))
          controller.close()
        },
      }),
      signal: undefined,
    } as unknown as NextRequest