old_contents: """This command opens a bash shell in the docker container."""
  
  from . import DodoCommand
  
  
  class Command(DodoCommand):  # noqa
      decorators = [
          "docker",
      ]
  
      def handle_imp(self, **kwargs):  # noqa
          self.runcmd(
              ['/bin/bash']
          )
  
new_contents: """This command opens a bash shell in the docker container."""
  
  from . import DodoCommand
  
  
  class Command(DodoCommand):  # noqa
      decorators = [
          "docker",
      ]
  
      def handle_imp(self, **kwargs):  # noqa
          self.runcmd(
              ['/bin/bash'],
              cwd=self.get_config("/DOCKER/default_cwd", None)
          )
  
subject: Use ${/DOCKER/default_cwd} in docker command