text: # Copyright (c) Microsoft Corporation.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # 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.
  
  import base64
  from pathlib import Path
  from typing import Dict, Union
  
  from playwright._impl._connection import ChannelOwner
  
  
  class Stream(ChannelOwner):
      def __init__(
          self, parent: ChannelOwner, type: str, guid: str, initializer: Dict
      ) -> None:
          super().__init__(parent, type, guid, initializer)
  
      async def save_as(self, path: Union[str, Path]) -> None:
          file = await self._loop.run_in_executor(None, lambda: open(path, "wb"))
          while True:
              binary = await self._channel.send("read")
              if not binary:
                  break
              await self._loop.run_in_executor(
                  None, lambda: file.write(base64.b64decode(binary))
              )
          await self._loop.run_in_executor(None, lambda: file.close())
  