code: def matrix_representation_test_data(self):
      data = [
          dict(
              basis_representation=gs.array([0.9]),
              expected=gs.array([[0.0, -0.9], [0.9, 0.0]]),
          )
      ]
      return self.generate_tests(data)
  
file_path: geomstats/tests/tests_geomstats/test_geometry/data/skew_symmetric_matrices.py
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from .lie_algebra import MatrixLieAlgebraTestData
label_desc: Use image node_id 2 for calling the SkewSymmetricMatrices2TestData obj's underlying member method code with example usage: obj.matrix_representation_test_data() and returns: self