Hello, I am trying to convert onxx yolov3 model using the conversion sdk which uses C++ API

Actually the onxx yolov3 model has 3 output nodes “output”, “738” and “815” i check on netron these 3 are the output layers. now in the below command.
$pegasus import onnx
–model ./model/${NAME}.onnx
–output-model ${NAME}.json
–output-data ${NAME}.data
–inputs “input”
–outputs “output”
–input-dtype-list “float”
–input-size-list “1,3,416,416”
–size-with-batch “True”

How i set the 3 output names in --outputs “” ?