Use absl::optional instead of std::optional
Use absl::optional instead of std::optional

PiperOrigin-RevId: 327147749
Change-Id: I0c827f93f3ff3e6d9b0c51433d1ac1609c7c6edb

cxxgtxy/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,karllessard/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,davidzchen/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,aam-at/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,aam-at/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,Intel-Corporation/tensorflow,paolodedios/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,aam-at/tensorflow,yongtang/tensorflow,aam-at/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,gautam1858/tensorflow,cxxgtxy/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,aldian/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aam-at/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,annarev/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,davidzchen/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,frreiss/tensorflow-fred,sarvex/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,annarev/tensorflow,yongtang/tensorflow,annarev/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,cxxgtxy/tensorflow,annarev/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,petewarden/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,aldian/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,sarvex/tensorflow,Intel-tensorflow/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,karllessard/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,annarev/tensorflow,davidzchen/tensorflow,aldian/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aldian/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,petewarden/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,aam-at/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,Intel-tensorflow/tensorflow,paolodedios/tensorflow,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model