message: Fix some comments in streaming AEAD key manager.
diff: # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  -"""Python wrapper of the wrapped C++ Streaming AEAD key manager.
  -
  -
  - def new_encrypting_stream(self, ciphertext_destination: BinaryIO,
  - associated_data: bytes) -> BinaryIO:
  - raw = self.new_raw_encrypting_stream(ciphertext_destination,
  - associated_data)
  - return typing.cast(BinaryIO, io.BufferedWriter(raw))
  -
  - def new_decrypting_stream(self, ciphertext_source: BinaryIO,
  - associated_data: bytes) -> BinaryIO:
  - raw = self.new_raw_decrypting_stream(ciphertext_source, associated_data)
  - return typing.cast(BinaryIO, io.BufferedReader(raw))
  -
  -
  -"""
  +"""Python wrapper of the wrapped C++ Streaming AEAD key manager."""
  from __future__ import absolute_import
  from __future__ import division
  @@ -75,7 +60,7 @@ def from_cc_registry(
  def register() -> None:
  - """Registers all AEAD key managers and AEAD wrapper in the Registry."""
  + """Registers Streaming AEAD key managers and the wrapper in the Registry."""
  if six.PY2:
  raise NotImplementedError('StreamingAEAD requires Python 3.')
  tink_bindings.register()
  