text: #ifndef _MYNAMESPACE1_NATIVEMETHODS2_H_
  #define _MYNAMESPACE1_NATIVEMETHODS2_H_
  
  #include <string>
  #include <algorithm>
  
  namespace MyNamespace1 {
  
  double nativeAdd(double a, double b) {
      return a + b;
  }
  
  double nativeMultiply(double a, double b);
  
  }
  
  #endif
  
  