message: Add 'visibility' attribute to external tf_python_pybind_extension to allow target access from outside of the project.
diff: @@ -2504,7 +2504,8 @@ def tf_python_pybind_extension(
  features = [],
  copts = [],
  hdrs = [],
  - deps = []):
  + deps = [],
  + visibility = None):
  """A wrapper macro for pybind_extension that is used in tensorflow/python/BUILD.
  It is used for targets under //third_party/tensorflow/python that link
  @@ -2518,6 +2519,7 @@ def tf_python_pybind_extension(
  copts = copts,
  hdrs = hdrs,
  deps = deps + tf_binary_pybind_deps() + mkl_deps(),
  + visibility = visibility,
  )
  def if_cuda_or_rocm(if_true, if_false = []):
  