graph optimizer options are now specified via
    `GraphOptions.OptimizerOptions`.
*   `ASSERT_OK` / `EXPECT_OK` macros conflicted with external projects, so they
    were renamed `TF_ASSERT_OK`, `TF_EXPECT_OK`. The existing macros are
    currently maintained for short-term compatibility but will be removed.
*   The non-public `nn.rnn` and the various `nn.seq2seq` methods now return just

inherit; // 2\n  text-align: -webkit-match-parent; // 3\n}\n\n\n//\n// Forms\n//\n\nlabel {\n  // Allow labels to use `margin` for spacing.\n  display: inline-block;\n  margin-bottom: $label-margin-bottom;\n}\n\n// Remove the default `border-radius` that macOS Chrome adds.\n//\n// Details at https://github.com/twbs/bootstrap/issues/24093\nbutton {\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 0;\n}\n\n// Explicitly remove focus outline in Chromium when it shouldn't be\n// visible...

with a set `text-align`.\n  text-align: inherit;\n}\n\n\n//\n// Forms\n//\n\nlabel {\n  // Allow labels to use `margin` for spacing.\n  display: inline-block;\n  margin-bottom: $label-margin-bottom;\n}\n\n// Remove the default `border-radius` that macOS Chrome adds.\n//\n// Details at https://github.com/twbs/bootstrap/issues/24093\nbutton {\n  // stylelint-disable-next-line property-blacklist\n  border-radius: 0;\n}\n\n// Work around a Firefox/IE bug where the transparent `button` background\n// results...