old_contents: # Licensed to the Software Freedom Conservancy (SFC) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The SFC licenses this file
  # to you 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 typing
  
  from selenium.webdriver.common import service
  
  
  class ChromiumService(service.Service):
      """A Service class that is responsible for the starting and stopping
      the WebDriver instance of the ChromiumDriver.
  
      :param executable_path: install path of the executable.
      :param port: Port for the service to run on, defaults to 0 where the operating system will decide.
      :param service_args: (Optional) Sequence of args to be passed to the subprocess when launching the executable.
      :param log_path: (Optional) String to be passed to the executable as `--log-path`.
      :param env: (Optional) Mapping of environment variables for the new process, defaults to `os.environ`.
      :param start_error_message: (Optional) Error message that forms part of the error when problems occur
      launching the subprocess.
      """
  
      def __init__(
          self,
          executable_path: str,
          port: int = 0,
          service_args: typing.Optional[typing.Sequence[str]] = None,
          log_path: typing.Optional[str] = None,
          env: typing.Optional[typing.Mapping[str, str]] = None,
          start_error_message: typing.Optional[str] = None,
      ):
          self.service_args = service_args or []
          if log_path:
              self.service_args.append(f"--log-path={log_path}")
  
          if not start_error_message:
              # Todo: Make this a required arg in future.
              raise TypeError("`start_error_message` must be provided.")
  
          super().__init__(
              executable=executable_path,
              port=port,
              env=env,
              start_error_message=start_error_message,
          )
  
      def command_line_args(self) -> typing.List[str]:
          return [f"--port={self.port}"] + self.service_args
  
new_contents: # Licensed to the Software Freedom Conservancy (SFC) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The SFC licenses this file
  # to you 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 typing
  
  from selenium.webdriver.common import service
  
  
  class ChromiumService(service.Service):
      """A Service class that is responsible for the starting and stopping
      the WebDriver instance of the ChromiumDriver.
  
      :param executable_path: install path of the executable.
      :param port: Port for the service to run on, defaults to 0 where the operating system will decide.
      :param service_args: (Optional) Sequence of args to be passed to the subprocess when launching the executable.
      :param log_path: (Optional) String to be passed to the executable as `--log-path`.
      :param env: (Optional) Mapping of environment variables for the new process, defaults to `os.environ`.
      :param start_error_message: (Optional) Error message that forms part of the error when problems occur
      launching the subprocess.
      """
  
      def __init__(
          self,
          executable_path: str,
          port: int = 0,
          service_args: typing.Optional[typing.Sequence[str]] = None,
          log_path: typing.Optional[str] = None,
          env: typing.Optional[typing.Mapping[str, str]] = None,
          start_error_message: typing.Optional[str] = None,
      ):
          self.service_args = service_args or []
          if log_path:
              self.service_args.append(f"--log-path={log_path}")
  
          super().__init__(
              executable=executable_path,
              port=port,
              env=env,
              start_error_message=start_error_message,
          )
  
      def command_line_args(self) -> typing.List[str]:
          return [f"--port={self.port}"] + self.service_args
  
subject: Remove unnecessary exception handling for `start_error_message`