Unclear method name extract_nodes

[kwang2049]

The method name cannot reflect its function clearly:

square-core/datastore-api/app/core/kgs/connector.py

Lines 201 to 219 in 3f5d675

	async def extract_nodes(self,kg_name, nids):
	"""Returns all nodes which go in or out a given node.
	Args:
	kg_name (str): Name of the knowledge graph.
	nids (List[str]]): List of nodes for which the in- and out-nodes should be retrieved.
	"""
	edges = await self.edges_in_out_msearch(kg_name, nids)
	results_nids = [{} for _ in nids]
	for i,nid in enumerate(nids):
	extra_nodes =[]
	for edge in edges[nid].values():
	if edge["in_id"] == nid:
	extra_node = edge["out_id"]
	else:
	extra_node = edge["in_id"]
	extra_nodes.append(extra_node)
	results_nids[i] = {nid:set(extra_nodes)}
	return results_nids

And why do we need this?

[kwang2049]

@SevenDaysDA