human
Solve the following python programming problem given the following code:
def _validate_data(self, data, funcs) : 
    'Check for incompatible data recursively.

        ``funcs`` is supposed to be a set, or just iterable two times and
        represents two functions, one to test whether the data is invalid
        and one to validate it. Both functions accept one parameter:
        the object to test.
        The validation value can be a function (is callable) or be a value.
        In the latter case the value will always be used instead of the
        previous object.

        Example:
            funcs = ((lambda x: isinstance(x, float), int),
                     (lambda x: isinstance(x, datetime.datetime), str),
                     (lambda x: x is None, False))
        ' 
    checked = [] 
    def check_recursive(obj) : 
        if (obj in checked) : 
            return obj 
checked.append (obj) 
        for (is_invalid, validate) in funcs : 
            if is_invalid (obj) : 
                if callable (validate) : 
                    obj = validate (obj) 
else : 
                    obj = validate 
if isinstance (obj, dict) : 
            for key in obj : 
                obj [key] = check_recursive (obj [key]) 
if isinstance (obj, list) : 
            for i in range (len (obj)) : 
                obj [i] = check_recursive (obj [i]) 
if isinstance (obj, tuple) : 
            return tuple ([check_recursive (sub_obj) for sub_obj in obj]) 
if isinstance (obj, set) : 
            for val in obj : 
                new_val = check_recursive (val) 
                if (new_val != val) : 
                    obj.remove (val) 
                    obj.add (new_val) 
return obj 
return check_recursive (check_recursive) 

    
    

    Fix the buggy line: return check_recursive (check_recursive)
assistant
#Here is Python program to fix the buggy line: return check_recursive (check_recursive)
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return check_recursive (data)