class_docstr: Window covers the entire grid,
  meaning every possible alignment between series1 and series2 is considered.
code: def column_lengths(self) -> np.ndarray:
      result = np.empty(self.n + 1)
      result.fill(self.m)
      result[0] = 1
      return result
  
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 4 for calling the NoWindow obj's underlying member method code with example usage: obj.column_lengths() and returns: result