message: Change visibility of batch_space_ops to friends from private.
diff: @@ -3765,7 +3765,7 @@ tf_kernel_library(
  "spacetobatch_functor.h",
  "spacetobatch_functor_gpu.cu.cc",
  ],
  - visibility = ["//visibility:private"],
  + visibility = [":friends"],
  deps = [
  ":bounds_check",
  "//tensorflow/core:framework",
  