text: #include<iostream>
  #ifndef _ENVIRONMENTALOPCODE_H
  #define _ENVIRONMENTALOPCODE_H
  #include "../EnvironmentalOpcode.h"
  #endif
  
  using namespace std;
  
  class ExtCodeHashOpcode : public EnvironmentalOpcode{
      public:
          ExtCodeHashOpcode(long offset) : EnvironmentalOpcode(OpcodeID::EXTCODEHASH){
              this->offset = offset;
          }
  
          int getStackConsumed() const{
              return 1;
          }
  };