docs: def get_pull_command(self, remote=None, revision=None):
          """Get the command to pull changes from a remote repository into the local repository."""
          if revision:
              raise NotImplementedError(compact("""
                  Bazaar repository support doesn't include
                  the ability to pull specific revisions!
              """))
          command = ['bzr', 'pull']
          if remote:
              command.append(remote)
          return command