code: def __bool__(self):
      return bool(self.s)
  
imports: import ast
  import re
  import sys
  import warnings
  from ..exceptions import DTypePromotionError
  from .multiarray import dtype, array, ndarray, promote_types
label_desc: Use image node_id 6 for calling the _Stream obj's underlying member method code with example usage: obj.__bool__() and returns: bool