message: Update API to use for legacy `where`, and v1=["where_v2"]) for new `where`
diff: @@ -3123,7 +3123,7 @@ def squeeze_v2(input, axis=None, name=None):
  return squeeze(input, axis, name)
  -@tf_export("where")
  +@tf_export(v1=["where"])
  @deprecation.deprecated(
  date=None,
  instructions="Use tf.where in 2.0, "
  @@ -3181,7 +3181,7 @@ def where(condition, x=None, y=None, name=None):
  raise ValueError("x and y must both be non-None or both be None.")
  -@tf_export(v1=["where_v2"], v2=["where"])
  +@tf_export("where", v1=["where_v2"])
  def where_v2(condition, x=None, y=None, name=None):
  """Return the elements, either from `x` or `y`, depending on the `condition`.
  If both `x` and `y` are None, then this operation returns the coordinates of
  