Error input & out put onnx model

how to uss and edit Input & output model of File .onnx had train from Machine Learning Visual studio 2022
i use netron to read file
it's show
input :
name: input
type: float32[batch,3,600,800]
denotation: Image()

- Output :
name: boxes
type: float32[prediction,Concatboxes_dim_1]

name: labels
type: int64[prediction]

name: scores
type: float32[prediction]