docs: def iswhat(o):
      """Returns a dictionary of all possible identity checks available to
      :mod:`inspect` applied to `o`.
  
      Returns:
          dict: keys are `inspect.is*` function names; values are `bool` results
            returned by each of the methods.
      """
      import inspect
      isfs = {n: f for n, f in inspect.getmembers(inspect) if n[0:2] == "is"}
      return {n: f(o) for n, f in isfs.items()}