code: def _sample_plate_carree_coordinates():
      x = np.array([-10, 0, 10, -9, 0, 9])
      y = np.array([10, 10, 10, 5, 5, 5])
      return x, y
  
file_path: cartopy/lib/cartopy/tests/test_vector_transform.py
imports: import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  import pytest
  import cartopy.crs
  import cartopy.vector_transform
label_desc: Use image node_id 1 for calling a global function with example usage: _sample_plate_carree_coordinates() and returns: x,  y