code: def get_geod_func():
      geod_func = [
          geodesic_euclid,
          geodesic_logeuclid,
          geodesic_riemann,
      ]
      for gf in geod_func:
          yield gf
  
file_path: pyRiemann/tests/test_utils_geodesic.py
imports: import numpy
  import pytest
  from pytest import approx
  from pyriemann.utils.geodesic import geodesic, geodesic_euclid, geodesic_logeuclid, geodesic_riemann
  from pyriemann.utils.mean import mean_euclid, mean_logeuclid, mean_riemann
label_desc: Use image node_id 1 for calling a global function with example usage: get_geod_func() without return types