if files is None:
        return {"files_count": 0}
    return {"files_count": len(files), "sizes": [len(f) for f in files]}


def test_optional_bytes_list():
    client = TestClient(app)
    response = client.post(
        "/files",
        files=[("files", b"content1"), ("files", b"content2")],
    )
    assert response.status_code == 200
    assert response.json() == {"files_count": 2, "sizes": [8, 8]}

        } catch (final FileUploadByteCountLimitException e) { // special handling
            handleSizeLimitExceededException(request, e);
        } catch (final FileUploadException e) { // contains fileCount exceeded
            handleFileUploadException(e);
        }
    }

    protected void prepareElementsHash() { // traditional name