400 Document pages exceed the limit: "PAGE_LIMIT_EXCEEDED"

Question

The DocumentProcessorServiceAsyncClient.process_document method is erring out with the following error message: 400 Document pages exceed the limit: "PAGE_LIMIT_EXCEEDED". According to the API documentation this processes should be able to handle a maximum of 200 pages. By using the DocumentProcessorServiceAsyncClient and not the DocumentProcessorServiceClient, I assumed that I would be able to leverage the asynchronous maximum page limit. This does not appear to be the case.

The sample code I am testing:

api_path = f'projects/{project_id}/locations/{gcloud_region}/processors/{processor_id}'
documentai_client = documentai.DocumentProcessorServiceAsyncClient() # maybe pass some client_options here?

async def invoke_invoice_processor(self, filebytes):
    raw_document = documentai.RawDocument(
        content=filebytes,
        mime_type="application/pdf",
    )
    request = documentai.ProcessRequest(
        name=api_path,
        raw_document=raw_document,
    )
    response = await documentai_client.process_document(request=request)
    return response.document

The above code block works with PDFs 10 pages and under. It only fails with PDFs larger than 10 pages.

MY question: what do I need to change about the above code to successfully process larger PDFs over 10 pages?