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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 delete(self, _id):
 """Delete a document or create a DELETE revision :param str _id: The ID of the document to be deleted :returns: JSON Mongo client response including the "n" key to show number of objects effected """

        mongo_response = yield self.collection.remove({"_id": ObjectId(_id)})

        raise Return(mongo_response)