code: def approx_equal(x, y, *args, **kwargs):
      """Return True if x and y are approximately equal, otherwise False.
  
      Args:
          x (object): first object to compare
          y (object): second object to compare
          tol (float, default=1e-18): absolute error
          rel (float, default=1e-7): relative error
  
      Returns:
          True if x and y are equal within tolerance, otherwise returns False.
  
      Notes:
          If x and y are floats, return True if y is within either absolute error
          tol or relative error rel of x. You can disable either the absolute or
          relative check by passing ``None`` as *tol* or *rel* (but not both).
  
          For any other objects, x and y are checked in that order for a method
          ``__approx_equal__``, and the result of that is returned as a bool. Any
          optional arguments are passed to the ``__approx_equal__`` method.
  
          ``__approx_equal__`` can return ``NotImplemented`` to signal it doesn't
          know how to perform the specific comparison, in which case the other
          object is checked instead. If neither object has the method, or both defer
          by returning ``NotImplemented``, then fall back on the same numeric
          comparison that is used for floats.
  
      Examples:
          >>> approx_equal(1.2345678, 1.2345677)
          True
          >>> approx_equal(1.234, 1.235)
          False
      """
      if not (type(x) is type(y) is float):
          # Skip checking for __approx_equal__ in the common case of two floats.
          methodname = "__approx_equal__"
          # Allow the objects to specify what they consider "approximately equal",
          # giving precedence to x. If either object has the appropriate method, we
          # pass on any optional arguments untouched.
          for a, b in ((x, y), (y, x)):
              try:
                  method = getattr(a, methodname)
              except AttributeError:
                  continue
              else:
                  result = method(b, *args, **kwargs)
                  if result is NotImplemented:
                      continue
                  return bool(result)
      # If we get here without returning, then neither x nor y knows how to do an
      # approximate equal comparison (or are both floats). Fall back to a numeric
      # comparison.
      return _float_approx_equal(x, y, *args, **kwargs)
  
label_desc: Use image node_id 2 for calling a global function with example usage: approx_equal(x, y) and returns: _float_approx_equal, bool