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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 execute_remove(self, remove):
		''' Execute a remove expression.  Should generally only be called implicitly.
		'''

		safe = self.safe
		if remove.safe is not None:
			safe = remove.safe

		self.queue.append(RemoveOp(self.transaction_id, self, remove.type, safe, remove))
		if self.autoflush:
			return self.flush()