Enable batch queries over lists of entities

[andrewsu]

BTE currently accepts queries with uniquely defined query nodes or node types. Here, we will extend BTE to accept lists of query entity IDs for execution in batch mode. (This feature currently exists in the BTE TRAPI interface / nodejs implementation, but not in the python client.)

[GitHubbit]

Is it possible to have an example of how to submit batch queries in the documentation somewhere?

For example:

ht = Hint()
disease_list = ["adhd", "Alzheimer's", "Parkinsons", "IBD"]
ht.query(disease_list)

...does not work bc the query function does not take lists, only strings...