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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 command_children(self, command):
 """ Run a command on the direct children of the currently selected container. :rtype: List of CommandReply???? """

        if not len(self.nodes):
            return

        commands = []
        for c in self.nodes:
            commands.append('[con_id="{}"] {};'.format(c.id, command))

        self._conn.command(' '.join(commands))