- search: the query to run
- db: corpus,corpus,corpus
- retmax: max number of results (will be capped at 100K by us)
- dl: set headers to offer file for download
- shuffle: randomly shuffle the tree index databases (note: trees still returned in their document order, though!)
- i or case=False or case=false: case insensitive search
- context: number of sentences of context to include in the result. Currently capped at 10.
Returns a json with the list of available corpora, etc...