code: def set_variable(self, start, variable):
          
  
          size = variable.size if variable.size is not None else 1
  
          self.set_object(start, variable, size)
docs: Add a variable to this region at the given offset, and remove all other variables that are fully covered by
          this variable.
  
          :param int start:
          :param SimVariable variable:
          :return: None