docs: def _get_addr(self, v):
          """
          Get address of the basic block or CFG node specified by v.
          :param v: Can be one of the following: a CFGNode, or an address.
          :return: The address.
          :rtype: int
          """
  
          if isinstance(v, CFGNode):
              return v.addr
          elif type(v) is int:
              return v
          else:
              raise AngrBladeError('Unsupported SimRun argument type %s' % type(v))