human
Solve the following python programming problem given the following code:
def api_endpoint(path_or_func = None, decorate = True) : 
    "
    Decorator to mark a method as an API endpoint for later registration.

    Args:
        path_or_func: either the function to be decorated or its API path.
        decorate (bool): Apply API_ENDPOINT_DECORATORS if True (default).

    Returns:
        Callable: Decorated function (with optionally applied decorators).

    Examples:

        >>> from dddp.api import APIMixin, api_endpoint
        >>> class Counter(APIMixin):
        ...     value = 0
        ...
        ...     # default API path matches function name 'increment'.
        ...     @api_endpoint
        ...     def increment(self, amount):
        ...         '''Increment counter value by `amount`.'''
        ...         self.value += amount
        ...         return self.value
        ...
        ...     # excplicitly set API path to 'Decrement'.
        ...     @api_endpoint('Decrement')
        ...     def decrement(self, amount):
        ...         '''Decrement counter value by `amount`.'''
        ...         self.value -= amount
        ...         return self.value

    " 
    def maybe_decorated(func) : 
        'Apply API_ENDPOINT_DECORATORS to func.' 
        if decorate : 
            for decorator in API_ENDPOINT_DECORATORS : 
                func = decorator () (func) 
return func 
if callable (path_or_func) : 
        path_or_func.api_path = path_or_func.__name__ 
        return maybe_decorated (path_or_func) 
else : 
        def _api_endpoint(func) : 
            'Decorator inner.' 
            if (path_or_func is None) : 
                func.api_path = func.__name__ 
else : 
                func.api_path = path_or_func 
return maybe_decorated (func) 
return decorate 

    
    

    Fix the buggy line: return decorate
assistant
#Here is Python program to fix the buggy line: return decorate
.

return def _api_endpoint(