human
Solve the following python programming problem given the following code:
def __init__(self, type = None, property_name = None, property_value = None, operator = EQUAL) : 
    def _conditional_setattr(key, value) : 
        if value : 
            setattr (self, key, value) 
_conditional_setattr ('type', type) 
    assert (self.type is not None) 
    _conditional_setattr ('property_name', property_name) 
    _conditional_setattr ('property_value', operator) 
    if ((self.property_name is not None) and (operator != ANY)) : 
        assert (self.property_value is not None) 
self.operator = operator 

    
    

    Fix the buggy line: _conditional_setattr ('property_value', operator)
assistant
#Here is Python code to fix the buggy line: _conditional_setattr ('property_value', operator)
.

_conditional_setattr ('property_value', property_value)