}

  string DebugString() const override;

 private:
  // Common implementation of Compile and CompileSingleOp. The `OpKernelContext`
  // parameter is always null for the former.
  Status CompileImpl(
      const XlaCompiler::CompileOptions& compile_options,
      const XlaCompiler::Options& options, const NameAttrList& function,
      const std::vector<XlaCompiler::Argument>& args, CompileScope scope,