Module util 

Utility functions (coin normalization, JSON parsing helpers).

Functions

normalize_coin

Normalize a coin symbol by stripping common suffixes and uppercasing.

parse_mid_price_from_l2book

Parse the mid price from an l2Book JSON response.

parse_position_szi

Parse a position’s size and side from a clearinghouseState JSON response.

parse_str_decimal

Parse a serde_json::Value as a Decimal.