code: def estimators(request):
      space, n_clusters = request.param
      request.cls.estimator = RiemannianKMedoids(
          space, n_clusters=n_clusters
      )
  
file_path: geomstats/tests/tests_geomstats/test_learning/test_kmedoids.py
imports: import random
  import pytest
  from geomstats.geometry.hypersphere import Hypersphere
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.learning.kmedoids import RiemannianKMedoids
  from geomstats.test.parametrizers import DataBasedParametrizer
  from geomstats.test_cases.learning._base import BaseEstimatorTestCase, ClusterMixinsTestCase
  from .data.kmedoids import RiemannianKMedoidsTestData
label_desc: Use image node_id 1 for calling a global function with example usage: estimators(request) without return types