def check_no_back_links_exist(self):
		from frappe.model.delete_doc import check_if_doc_is_linked, check_if_doc_is_dynamically_linked
		if not self.flags.ignore_links:
			check_if_doc_is_linked(self, method="Cancel")
			check_if_doc_is_dynamically_linked(self, method="Cancel")
generate VAR signals, mix them, and see if MVARICA can reconstruct the signals
dataset/ETHPy150Open frappe/frappe/frappe/model/document.py/Document.check_no_back_links_exist--crossover with--dataset/ETHPy150Open scot-dev/scot/scot/tests/test_ooapi.py/TestMVARICA.testModelIdentification