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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def subcommand(self, *args):
 """Get subcommand acting on a service. Subcommand will run in service directory and with the environment variables used to run the service itself. Args: *args: Arguments to run command (e.g. "redis-cli", "-n", "1") Returns: Subcommand object. """

        return Subcommand(*args, directory=self.directory, env_vars=self.env_vars)