class_docstr: Test GeneralSpace works on a Circle.
class_docstr_tok: ["Test","GeneralSpace","works","on","a","Circle","."]
code: def embed_coords(self, coords):
      return tf.stack(
          [tf.math.cos(coords), tf.math.sin(coords)], axis=-1
      )
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import exp
  from tensorflow_probability.python.bijectors import reshape
  from tensorflow_probability.python.bijectors import scale
  from tensorflow_probability.python.bijectors import scale_matvec_tril
  from tensorflow_probability.python.bijectors import transform_diagonal
  from tensorflow_probability.python.experimental.tangent_spaces import spaces
  from tensorflow_probability.python.experimental.tangent_spaces import spaces_test_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 2 for calling the CircleSpaceTest obj's underlying member method code with example usage: obj.embed_coords(coords) and returns: tf