mylittleindicators 0.1.8

Multi-stream financial indicators library — 556 bar indicators + 21 event primitives across 35 categories. Consumes 27 stream kinds from digdigdig3 exchange connectors: OHLCV bars, ticks, orderbook (snapshot/delta/L3), funding/predicted funding/funding settlement, mark price, index price, open interest, liquidations, ticker, agg trades, long/short ratio, option greeks, volatility index, historical volatility, basis (derived), composite index, settlement events, block trades, insurance fund, risk limit, market warning, and three kline-family variants. Live-verified on 12 exchanges (89% pass-rate on a 150s BTC slice).
Documentation 
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//! Trait for indicators that consume Level-3 orderbook events.

use crate::core::types::OrderbookL3Event;
use crate::bar_indicators::indicator_value::IndicatorValue;

/// Indicators that process individual L3 order-level add/modify/delete events.
pub trait OrderbookL3Consumer {
    /// Process a new L3 orderbook event and return the updated value.
    fn update_orderbook_l3(&mut self, l3: &OrderbookL3Event) -> IndicatorValue;

    /// Current value without updating.
    fn value(&self) -> IndicatorValue;

    /// Reset internal state.
    fn reset(&mut self);

    /// True if the indicator has enough data to produce reliable signals.
    fn is_ready(&self) -> bool;
}