Changing the exception type.

Author: jirioc

backends/nxp/nxp_backend.py

@@ -248,7 +248,7 @@ def _create_payload_header(self, io_formats, neutron_artifacts) -> np.ndarray:
             try:
                 header_data.append(1 if outputs[output_name.decode()] == TensorFormat.CHANNELS_LAST else 0)
             except KeyError:
-                assert 0, f'Output tensor `{output_name.decode()}` not found in the converted model.'
+                raise AssertionError(f'Output tensor `{output_name.decode()}` not found in the converted model.')
 
         header_data.extend(neutron_artifacts.input_indices)
         header_data.extend(neutron_artifacts.output_indices)