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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 cmd_func_name(self, command: str) -> str: """Get the method name associated with a given command. :param command: command to look up method name which implements it :return: method name which implements the given command """

        target = COMMAND_FUNC_PREFIX + command
        return target if callable(getattr(self, target, None)) else ''