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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 _process_collection(self, collection_id, label, page):
 """ This function will process the data supplied internally about the repository from Coriell. Triples: Repository a ERO:collection rdf:label Literal(label) foaf:page Literal(page) :param collection_id: :param label: :param page: :return: """

        # #############    BUILD THE CELL LINE REPOSITORY    #############
        for graph in [self.graph, self.testgraph]:
            # TODO: How to devise a label for each repository?
            model = Model(graph)
            reference = Reference(graph)
            repo_id = 'CoriellCollection:' + collection_id
            repo_label = label
            repo_page = page

            model.addIndividualToGraph(
                repo_id, repo_label, self.globaltt['collection'])
            reference.addPage(repo_id, repo_page)

        return