class_docstr: Base class for testing Tangent Spaces.
class_docstr_tok: ["Base","class","for","testing","Tangent","Spaces","."]
code: def tangent_space(self, x):
      # Tangent Space at a point on the unit circle. Only one tangent vector.
      return spaces.GeneralSpace(self.tangent_basis(x))
  
file_path: probability/tensorflow_probability/python/experimental/tangent_spaces/spaces_test_util.py
imports: import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import identity
  from tensorflow_probability.python.experimental.tangent_spaces import spaces
  from tensorflow_probability.python.internal import tensorshape_util
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math import gradient
label_desc: Use image node_id 4 for calling the SpacesTest obj's underlying member method code with example usage: obj.tangent_space(x) and returns: spaces