human
Solve the following python programming problem given the following code:
def __call__(self, func = None, precision = None) : 
    if (func is not None) : 
        if (not callable (func)) : 
            raise ValueError ('Value must be callable') 
self.add_function (func) 
        f = self.wrap_function (func) 
        f.__module__ = func.__module__ 
        f.__name__ = func.__name__ 
        f.__doc__ = func.__doc__ 
        f.__dict__.update (getattr (f, '__dict__', { 
            
})) 
        return f 
else : 
        def inner_partial(f) : 
            return self.__call__ (f, precision = precision) 
return inner_partial 

    
    

    Fix the buggy line: f.__dict__.update (getattr (f, '__dict__', {
assistant
#Here is Python code to fix the buggy line: f.

f.__dict__.update (getattr (func, '__dict__', {