code: def forward(self, batch_data):
      blob = (batch_data - self.input_mean) / self.input_std
      net_out = self.session.run(
          self.output_names, {self.input_name: blob}
      )[0]
      return net_out
  
file_path: insightface/web-demos/src_recognition/arcface_onnx.py
imports: import numpy
  import cv2
  import onnx
  import onnxruntime
  import face_align
label_desc: Use image node_id 6 for calling the ArcFaceONNX obj's underlying member method code with example usage: obj.forward(batch_data) and returns: net_out