Re-write docstring for ModelCheckpoint. Add example.
Re-write docstring for ModelCheckpoint. Add example.

PiperOrigin-RevId: 284242148
Change-Id: I1cb9265fcad710100bd7bcf4d6193779ce250923

xzturn/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,yongtang/tensorflow,yongtang/tensorflow,jhseu/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,petewarden/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,aldian/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,paolodedios/tensorflow,gunan/tensorflow,gautam1858/tensorflow,gunan/tensorflow,gunan/tensorflow,tensorflow/tensorflow,jhseu/tensorflow,renyi533/tensorflow,Intel-tensorflow/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,aam-at/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,xzturn/tensorflow,annarev/tensorflow,annarev/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,renyi533/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,petewarden/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,cxxgtxy/tensorflow,jhseu/tensorflow,annarev/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,xzturn/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,yongtang/tensorflow,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,xzturn/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,renyi533/tensorflow,jhseu/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,karllessard/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,paolodedios/tensorflow,gunan/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,jhseu/tensorflow,aldian/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,xzturn/tensorflow,renyi533/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,Intel-tensorflow/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,gautam1858/tensorflow,renyi533/tensorflow,petewarden/tensorflow,xzturn/tensorflow,xzturn/tensorflow,gunan/tensorflow,tensorflow/tensorflow,aldian/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,xzturn/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,sarvex/tensorflow,davidzchen/tensorflow,Intel-Corporation/tensorflow,yongtang/tensorflow,renyi533/tensorflow,sarvex/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,jhseu/tensorflow,petewarden/tensorflow,frreiss/tensorflow-fred,jhseu/tensorflow,gunan/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,aldian/tensorflow,aam-at/tensorflow,Intel-Corporation/tensorflow,xzturn/tensorflow,cxxgtxy/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,freedomtan/tensorflow,gunan/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,petewarden/tensorflow,karllessard/tensorflow,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-Corporation/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,gunan/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,aldian/tensorflow,karllessard/tensorflow,annarev/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,karllessard/tensorflow,xzturn/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,sarvex/tensorflow,cxxgtxy/tensorflow,cxxgtxy/tensorflow,paolodedios/tensorflow,aldian/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,cxxgtxy/tensorflow,renyi533/tensorflow,petewarden/tensorflow,renyi533/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,tensorflo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