contentHash   Checksum
	contentHasher hash.Hash
	disableMD5    bool

	trailer http.Header

	sha256 hash.Hash
}

// Options are optional arguments to NewReaderWithOpts, Options
// simply converts positional arguments to NewReader() into a
// more flexible way to provide optional inputs. This is currently
// used by the FanOut API call mostly to disable expensive md5sum
// calculation repeatedly under hash.Reader.

- Enabled kubectl to find `kubectl-create-subcommand` plugins when positional
  arguments exists, e.g. `kubectl create subcommand arg`. ([#124123](https://github.com/kubernetes/kubernetes/pull/124123), [@sttts](https://github.com/sttts))

        layers in order to work, where the Keras symbolic shape inference proves
        insufficient.
    *   Code that tries manually walking a `tf.keras.Model` layer by layer and
        assumes layers only ever have one positional argument. This assumption
        doesn't hold true before TF 2.4 either, but is more likely to cause
        issues now.
    *   Code that manually enters `keras.backend.get_graph()` before building a