*     underlying this step or, if {@code get()} throws a different kind of exception, that
   *     exception itself. To avoid hiding bugs and other unrecoverable errors, callers should
   *     prefer more specific types, avoiding {@code Throwable.class} in particular.
   * @param fallback the function to be called if this step fails with the expected exception type.

			for j, v := range b.Values {
				var v0 *Value
				if debug > 1 {
					v0 = new(Value)
					*v0 = *v
					v0.Args = append([]*Value{}, v.Args...) // make a new copy, not aliasing
				}
				if v.Uses == 0 && v.removeable() {
					if v.Op != OpInvalid && deadcode == removeDeadValues {
						// Reset any values that are now unused, so that we decrement
						// the use count of all of its arguments.

// sends a frame that is larger than declared with SetMaxReadFrameSize.
var http2ErrFrameTooLarge = errors.New("http2: frame too large")

// terminalReadFrameError reports whether err is an unrecoverable
// error from ReadFrame and no other frames should be read.
func http2terminalReadFrameError(err error) bool {
	if _, ok := err.(http2StreamError); ok {
		return false
	}
	return err != nil
}

        Specifically, for the type of interruption with advance notice, it
        automatically saves a checkpoint, exits the program without raising an
        unrecoverable error, and restores the progress when training restarts.

*   `tf.math`:

    *   Added `tf.math.approx_max_k` and `tf.math.approx_min_k` which are the