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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 sequential(self, func, args_dict=None):
 """ Execute a function for all Crazyflies in the swarm, in sequence. The first argument of the function that is passed in will be a SyncCrazyflie instance connected to the Crazyflie to operate on. A list of optional parameters (per Crazyflie) may follow defined by the args_dict. The dictionary is keyed on URI. Example: def my_function(scf, optional_param0, optional_param1) args_dict = { URI0: [optional_param0_cf0, optional_param1_cf0], URI1: [optional_param0_cf1, optional_param1_cf1], } self.sequential(my_function, args_dict) :param func: the function to execute :param args_dict: parameters to pass to the function """

        for uri, cf in self._cfs.items():
            args = self._process_args_dict(cf, uri, args_dict)
            func(*args)