Add params

.metadata.yaml

@@ -29,12 +29,10 @@ architecture:
   num_classes: 19
   modality:
     - vision
-  # parameters: intentionally absent — see the note above. Fill it with the
-  #             exact count instead of an estimate:
-  #   import onnx; from onnx import numpy_helper
-  #   m = onnx.load('model.onnx')
-  #   sum(numpy_helper.to_array(t).size for t in m.graph.initializer)
-  parameters_source: unknown
+  parameters: 41.2M
+  parameters_source: onnx-initializers
+  parameters_note: >-
+    counted from the fp32 ONNX initializers (sum of tensor element counts)
 
 format:
   type: onnx