code: def _op_method(self, data):
          
  
          res = np.empty(len(self.operators), dtype=np.ndarray)
  
          for i in range(len(self.operators)):
              res[i] = self.operators[i].op(data)
  
          return res
docs: Operator
  
          This method returns the input data operated on by all of the operators
  
          Parameters
          ----------
          data : np.ndarray
              Input data array
  
          Returns
          -------
          np.ndarray linear operation results