code: def spaces(request):
      request.cls.space = LowerTriangularMatrices(n=request.param)
  
file_path: geomstats/tests/tests_geomstats/test_geometry/test_lower_triangular_matrices.py
imports: import random
  import pytest
  from geomstats.geometry.lower_triangular_matrices import LowerTriangularMatrices
  from geomstats.test.parametrizers import DataBasedParametrizer
  from geomstats.test_cases.geometry.base import MatrixVectorSpaceTestCase
  from geomstats.test_cases.geometry.matrices import MatricesMetricTestCase
  from .data.lower_triangular_matrices import LowerTriangularMatrices2TestData, LowerTriangularMatrices3TestData, LowerTriangularMatricesTestData
  from .data.matrices import MatricesMetricTestData
label_desc: Use image node_id 1 for calling a global function with example usage: spaces(request) without return types