Get current L2 aggregated order book
The symbol
The best N bids and asks to return, where N = depth
The side of the order. Values include: 0: Bid, 1: Ask
0, 1 The price aggregation to use for the L2 orderbook. Valid values for each symbol include: ETHP: 0.1, 1, 10 BTCP: 1, 10, 100
0.1, 1, 10, 100