code: def test_log_sigmoid(self, point, expected, atol):
      res = self.embedding.log_sigmoid(point)
      self.assertAllClose(res, expected, atol=atol)
  
imports: import geomstats.backend
  from geomstats.test.test_case import TestCase
label_desc: Use image node_id 1 for calling the HyperbolicEmbeddingTestCase obj's underlying member method code with example usage: obj.test_log_sigmoid(point, expected, atol) without return types