class_docstr: Window covers the entire grid,
  meaning every possible alignment between series1 and series2 is considered.
code: def __iter__(self):
      for i in range(1, self.n + 1):
          for j in range(1, self.m + 1):
              yield i, j
  
imports: import array
  from abc import ABC, abstractmethod
  from math import atan, tan
  from typing import Tuple
  import numpy
  from darts.logging import raise_if, raise_if_not
label_desc: Use image node_id 5 for calling the NoWindow obj's underlying member method code with example usage: obj.__iter__() without return types