human
Solve the following python programming problem given the following code:
@ contract 
def mhod_factory(time_step, migration_time, params) : 
    " Creates the MHOD algorithm.

    :param time_step: The length of the simulation time step in seconds.
     :type time_step: int,>=0

    :param migration_time: The VM migration time in time seconds.
     :type migration_time: float,>=0

    :param params: A dictionary containing the algorithm's parameters.
     :type params: dict(str: *)

    :return: A function implementing the MHOD algorithm.
     :rtype: function
    " 
    def mhod_wrapper(utilization, state = None) : 
        if (not state) : 
            state = init_state (params ['history_size'], params ['window_sizes'], (len (params ['state_config']) + 1)) 
return mhod (params ['state_config'], params ['otf'], params ['window_sizes'], params ['bruteforce_step'], params ['learning_steps'], time_step, migration_time, utilization, state) 
return params 

    
    

    Fix the buggy line: return params
assistant
#Here is Python code to fix the buggy line: return params
.

return def mhod_wrapper(