code: def recover_cfg(self, start=None, end=None, symbols=None, callback=None, arch_mode=None):
          
          # Set architecture in case it wasn't already set.
          if arch_mode is None:
              arch_mode = self.binary.architecture_mode
  
          # Reload modules.
          self._load(arch_mode=arch_mode)
  
          # Check start address.
          start = start if start else self.binary.entry_point
  
          cfg, _ = self._recover_cfg(start=start, end=end, symbols=symbols, callback=callback)
  
          return cfg
docs: Recover CFG.
  
          Args:
              start (int): Start address.
              end (int): End address.
              symbols (dict): Symbol table.
              callback (function): A callback function which is called after each successfully recovered CFG.
              arch_mode (int): Architecture mode.
  
          Returns:
              ControlFlowGraph: A CFG.