code: def angles_and_vec_from_eye(eye, iris_lms_idx):
      vec = vec_from_eye(eye, iris_lms_idx)
      theta_x, theta_y = angles_from_vec(vec)
      return theta_x, theta_y, vec
  
imports: from models import GazeModel
  import sys
  import glob
  import torch
  import os
  import os.path
  import numpy
  import cv2
  import os.path
  import insightface
  from insightface.app import FaceAnalysis
  from insightface.utils import face_align
  import menpo.io
  from menpo.image import Image
  from menpo.shape import PointCloud, TriMesh
label_desc: Use image node_id 3 for calling a global function with example usage: angles_and_vec_from_eye(eye, iris_lms_idx) and returns: theta_x,  theta_y,  vec