message: Update initializers_v2.py
  Remove stray backticks in `Initializer` docstring.
diff: @@ -34,7 +34,7 @@ class Initializer(object):
  signature:
  ```python
  - def __call__(self, shape, dtype=None)`:
  + def __call__(self, shape, dtype=None):
  # returns a tensor of shape `shape` and dtype `dtype`
  # containing values drawn from a distribution of your choice.
  ```
  @@ -54,7 +54,7 @@ class Initializer(object):
  self.mean = mean
  self.stddev = stddev
  - def __call__(self, shape, dtype=None)`:
  + def __call__(self, shape, dtype=None):
  return tf.random.normal(
  shape, mean=self.mean, stddev=self.stddev, dtype=dtype)
  