class_docstr: A base class for splash attention masks.
class_docstr_tok: ["A","base","class","for","splash","attention","masks","."]
code: def shape(self) -> Tuple[int, ...]:
      raise NotImplementedError
  
imports: from __future__ import annotations
  import dataclasses
  from typing import Any, Callable, Sequence, Tuple
  import numpy
label_desc: Use image node_id 1 for calling the Mask obj's underlying member method code with example usage: obj.shape() without return types