class_docstr: Simple wrapper that makes Numpy arrays hashable.
code: def __hash__(self):
      return hash(self._bytes)
  
file_path: scenic/scenic/projects/owl_vit/notebooks/numpy_cache.py
imports: import functools
  import numpy
label_desc: Use image node_id 2 for calling the _HashableNumpyArray obj's underlying member method code with example usage: obj.__hash__() and returns: hash