[TF-numpy] Fixed einsum's signature to be Python2 compatible.
[TF-numpy] Fixed einsum's signature to be Python2 compatible.

PiperOrigin-RevId: 317490711
Change-Id: Ia33d3958bb3163131d40262cd7247411be4ade52

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