Loosen return type for variables.
Loosen return type for variables.

PiperOrigin-RevId: 229924537

tensorflow/tensorflow-experimental_link_static_libraries_once,xzturn/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,apark263/tensorflow,jhseu/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,aldian/tensorflow,jhseu/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,ppwwyyxx/tensorflow,jhseu/tensorflow,kevin-coder/tensorflow-fork,frreiss/tensorflow-fred,gautam1858/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,ghchinoy/tensorflow,xzturn/tensorflow,theflofly/tensorflow,davidzchen/tensorflow,DavidNorman/tensorflow,ppwwyyxx/tensorflow,ghchinoy/tensorflow,petewarden/tensorflow,alsrgv/tensorflow,ppwwyyxx/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,xzturn/tensorflow,cxxgtxy/tensorflow,jhseu/tensorflow,aam-at/tensorflow,ageron/tensorflow,karllessard/tensorflow,gautam1858/tensorflow,gautam1858/tensorflow,DavidNorman/tensorflow,arborh/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,kevin-coder/tensorflow-fork,apark263/tensorflow,apark263/tensorflow,theflofly/tensorflow,Intel-Corporation/tensorflow,ageron/tensorflow,tensorflow/tensorflow,chemelnucfin/tensorflow,alsrgv/tensorflow,ghchinoy/tensorflow,ageron/tensorflow,sarvex/tensorflow,apark263/tensorflow,arborh/tensorflow,aam-at/tensorflow,gunan/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,ageron/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aldian/tensorflow,DavidNorman/tensorflow,Intel-Corporation/tensorflow,jbedorf/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,yongtang/tensorflow,arborh/tensorflow,jendap/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,Intel-tensorflow/tensorflow,jendap/tensorflow,gunan/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,alsrgv/tensorflow,apark263/tensorflow,paolodedios/tensorflow,annarev/tensorflow,chemelnucfin/tensorflow,renyi533/tensorflow,ageron/tensorflow,gautam1858/tensorflow,Intel-tensorflow/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,ppwwyyxx/tensorflow,paolodedios/tensorflow,karllessard/tensorflow,ageron/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,alsrgv/tensorflow,aam-at/tensorflow,sarvex/tensorflow,DavidNorman/tensorflow,renyi533/tensorflow,jhseu/tensorflow,gunan/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,paolodedios/tensorflow,sarvex/tensorflow,adit-chandra/tensorflow,ageron/tensorflow,renyi533/tensorflow,chemelnucfin/tensorflow,petewarden/tensorflow,jbedorf/tensorflow,tensorflow/tensorflow-pywrap_saved_model,jendap/tensorflow,apark263/tensorflow,jbedorf/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,gunan/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,theflofly/tensorflow,theflofly/tensorflow,jendap/tensorflow,Intel-tensorflow/tensorflow,theflofly/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,jendap/tensorflow,xzturn/tensorflow,annarev/tensorflow,kevin-coder/tensorflow-fork,xzturn/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,adit-chandra/tensorflow,Intel-tensorflow/tensorflow,DavidNorman/tensorflow,arborh/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow,chemelnucfin/tensorflow,ghchinoy/tensorflow,theflofly/tensorflow,yongtang/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,jbedorf/tensorflow,gunan/tensorflow,gunan/tensorflow,arborh/tensorflow,annarev/tensorflow,tensorflow/tensorflow,kevin-coder/tensorflow-fork,freedomtan/tensorflow,alsrgv/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ghchinoy/tensorflow,xzturn/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,Intel-Corporation/tensorflow,theflofly/tensorflow,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,petewarden/tensorflow,arborh/tensorflow,jhseu/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,jendap/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,frreiss/tensorflow-fred,DavidNorman/tensorflow,arborh/tensorflow,gautam1858/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,ghchinoy/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,alsrgv/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,renyi533/tensorflow,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,alsrgv/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,ghchinoy/tensorflow,kevin-coder/tensorflow-fork,jbedorf/tensorflow,petewarden/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,kevin-coder/tensorflow-fork,chemelnucfin/tensorflow,jbedorf/tensorflow,alsrgv/tensorflow,Intel-Corporation/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,chemelnucfin/tensorflow,gautam1858/tensorflow,jendap/tensorflow,aam-at/tensorflow,sarvex/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,theflofly/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,jhseu/tensorflow,aldian/tensorflow,DavidNorman/tensorflow,chemelnucfin/tensorflow,yongtang/tensorflow,arborh/tensorflow,annarev/tensorflow,ppwwyyxx/tensorflow,alsrgv/tensorflow,adit-chandra/tensorflow,theflofly/tensorflow,aam-at/tensorflow,chemelnucfin/tensorflow,renyi533/tensorflow,adit-chandra/tensorflow,jbedorf/tensorflow,jbedorf/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,renyi533/tensorflow,frreiss/tensorflow-fred,DavidNorman/tensorflow,xzturn/tensorflow,alsrgv/tensorflow,cxxgtxy/tensorflow,jhseu/tensorflow,ageron/tensorflow,gunan/tensorflow,adit-chandra/tensorflow,paolodedios/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow,ghchinoy/tensorflow,theflofly/tensorflow,gautam1858/tensorflow,kevin-coder/tensorflow-fork,paolodedios/tensorflow,adit-chandra/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,xzturn/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,chemelnucfin/tensorflow,apark263/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,karllessard/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ghchinoy/tensorflow,alsrgv/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aldian/tensorflow,apark263/tensorflow,arborh/tensorflow,xzturn/tensorflow,DavidNorman/tensorflow,ghchinoy/tensorflow,ppwwyyxx/tensorflow,jendap/tensorflow,karllessard/tensorflow,jhseu/tensorflow,jbedorf/tensorflow,renyi533/tensorflow,cxxgtxy/tensorflow,frreiss/tensorflow-fred,arborh/tensorflow,annarev/tensorflow,yongtang/tensorflow,gunan/tensorflow,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,gunan/tensorflow,jendap/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,ghchinoy/tensorflow,jbedorf/tensorflow,frreiss/tensorflow-fred,theflofly/tensorflow,adit-chandra/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aldian/tensorflow,chemelnucfin/tensorflow,ageron/tensorflow,annarev/tensorflow,gunan/tensorflow,ageron/tensorflow,petewarden/tensorflow,apark263/tensorflow,ghchinoy/tensorflow,aldian/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,jbedorf/tensorflow,adit-chandra/tensorflow,renyi533/tensorflow,DavidNorman/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,freedomtan/tensorflow,arborh/tensorflow,yongtang/tensorflow,petewarden/tensorflow,gautam1858/tensorflow,annarev/tensorflow,apark263/tensorflow,gunan/tensorflow,xzturn/tensorflow,karllessard/tensorflow,jhseu/tensorflow,jhseu/tensorflow,chemelnucfin/tensorflow,annarev/tensorflow,kevin-coder/tensorflow-fork,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,chemelnucfin/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,freedomtan/tensorflow,alsrgv/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,karllessard/tensorflow,ageron/tensorflow,frreiss/tensorflow-fred,jbedorf/tensorflow,cxxgtxy/tensorflow,renyi533/tensorflow,arborh/tensorflow,apark263/tensorflow,jendap/tensorflow,karllessard/tensorflow,jendap/tensorflow,aam-at/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow,adit-chandra/tensorflow,ppwwyyxx/tensorflow,ageron/tensorflow