changes to be made to PR to pass quality checks and send it back or on a
    rare occasion we may reject it.

**3. Review**

-   For a valid PR, reviewer (person familiar with the code/functionality)
    checks if the PR looks good or needs additional changes.
-   If all looks good, the reviewer will approve the PR.
-   If a change is needed, the contributor is requested to make the suggested

#     flag_values = {":tf_no_prod_deps": "True"},
# )
#
# selects.config_setting_group(
#     name = "no_prod_deps",
#     match_any = [
#         ":no_prod_deps_define",
#         ":no_prod_deps_flag",
#     ],
# )
#
# config_setting(
#     name = "no_prod_deps_cuda",
#     define_values = {
#         "tf_no_prod_deps": "1",
#         "GOOGLE_CUDA_COMPILER": "clang",
#     },

        *   (since v2.7) `tf.math.segment_prod`
        *   (since v2.7) `tf.math.segment_sum`
        *   (since v2.7) `tf.math.unsorted_segment_mean`
        *   (since v2.7) `tf.math.unsorted_segment_prod`
        *   (since v2.7) `tf.math.unsorted_segment_sum`
        *   (since v2.7) `tf.math.unsorted_segment_sqrt`
        *   (since v2.7) `tf.nn.ctc_loss` (resolved, possibly in prior release,
            and confirmed with tests)