def METHOD_NAME(self, service_response_handler_chain):
    context = create_aws_request_context("s3", "GetObject", {"Bucket": "foo", "Key": "bar.bin"})
    backend_response = {"Body": b"\x00\x01foo", "ContentType": "application/octet-stream"}
    http_response = create_serializer(context.service).serialize_to_response(
        backend_response, context.operation, context.request.headers, context.request_id
    )
    service_response_handler_chain.handle(context, http_response)
    assert context.service_response["ContentLength"] == 5
    assert context.service_response["ContentType"] == "application/octet-stream"
    assert context.service_response["Body"].read() == b"\x00\x01foo"