Instrument symbol. Send a bare series (e.g. XBT) to get data for the nearest expiring contract in that series. You can also send a timefram...

Generic table filter. Send JSON key/value pairs, such as `{"key": "value"}`. You can key on individual fields, and do more advanced querying...

Array of column names to fetch. If omitted, will return all columns. Note that this method will always return item keys, even when not spec...