code: def _cvt_GCV_vertices_to_points(vertices):
      return np.array([[vertex.x, vertex.y] for vertex in vertices])
  
imports: import io
  import os
  import json
  import warnings
  import numpy
  from cv2 import imencode
  from .base import BaseOCRAgent, BaseOCRElementType
  from ..elements import Layout, TextBlock, Quadrilateral, TextBlock
  from ..file_utils import is_gcv_available
label_desc: Use image node_id 1 for calling a global function with example usage: _cvt_GCV_vertices_to_points(vertices) and returns: np