code: def test_empty_mesh_face_picking():
      mesh = Mesh()
      filter = FacePickingFilter()
      mesh.attach(filter)
      filter.enabled = True
  
file_path: vispy/vispy/visuals/filters/tests/test_primitive_picking_filters.py
imports: import numpy
  from vispy.geometry import create_plane
  from vispy.scene.visuals import Markers, Mesh
  from vispy.testing import requires_application, TestingCanvas
  from vispy.visuals.filters import FacePickingFilter, MarkerPickingFilter
label_desc: Use image node_id 1 for calling a global function with example usage: test_empty_mesh_face_picking() without return types