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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def unbind(self, callback):
 """Remove a callback from the list """

        handlers = self._handlers
        if handlers:
            filtered_callbacks = [f for f in handlers if f != callback]
            removed_count = len(handlers) - len(filtered_callbacks)
            if removed_count:
                self._handlers = filtered_callbacks
            return removed_count
        return 0