return 'production';
        
        
        
        
        
      }
      const toString = Function.prototype.toString;
      if (renderer.Mount && renderer.Mount._renderNewRootComponent) {
        
        const renderRootCode = toString.call(
          renderer.Mount._renderNewRootComponent,
        );
        
        if (renderRootCode.indexOf('function') !== 0) {
          
          return 'production';
        }
        
        
        
        if (renderRootCode.indexOf('storedMeasure') !== -1) {
          return 'development';
        }
        
        
        
        
        if (renderRootCode.indexOf('should be a pure function') !== -1) {