[FIX] l10n_ch: ensure correct type of drawing

Ensure the type given in parameter is from reportlab.

opw-4478396

Author: mwath

addons/l10n_ch/models/ir_actions_report.py

@@ -4,7 +4,7 @@
 from odoo import api, models
 from odoo.tools.pdf import OdooPdfFileReader, OdooPdfFileWriter
 from pathlib import Path
-from reportlab.graphics.shapes import Image as ReportLabImage
+from reportlab.graphics.shapes import Drawing as ReportLabDrawing, Image as ReportLabImage
 from reportlab.lib.units import mm
 
 CH_QR_CROSS_SIZE_RATIO = 0.1522 # Ratio between the side length of the Swiss QR-code cross image and the QR-code's
@@ -21,6 +21,7 @@ def get_available_barcode_masks(self):
 
     @api.model
     def apply_qr_code_ch_cross_mask(self, width, height, barcode_drawing):
+        assert isinstance(barcode_drawing, ReportLabDrawing)
         zoom_x = barcode_drawing.transform[0]
         zoom_y = barcode_drawing.transform[3]
         cross_width = CH_QR_CROSS_SIZE_RATIO * width