<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def validate(self, name, value):
 """Validate a cookie attribute with an appropriate validator. The value comes in already parsed (for example, an expires value should be a datetime). Called automatically when an attribute value is set. """

        validator = self.attribute_validators.get(name, None)
        if validator:
            return True if validator(value) else False
        return True