Python in.
Verified Rust out.

# Precision pricing hot-path
def ema(window: int, alpha: float, prices: list[float]) -> list[float]:
    if not prices or window <= 0:
        return []
    out = [prices[0]]
    for p in prices[1:]:
        out.append(alpha * p + (1.0 - alpha) * out[-1])
    return out

def max_drawdown(equity: list[float]) -> float:
    peak = equity[0]
    max_dd = 0.0
    for val in equity:
        if val > peak: peak = val
        dd = (peak - val) / peak
        if dd > max_dd: max_dd = dd
    return max_dd

// Auto-generated by ELYREON Rust Transfer
pub fn ema(window: i64, alpha: f64, prices: &[f64]) -> Vec<f64> {
    if prices.is_empty() || window <= 0 {
        return Vec::new();
    }
    let mut out = Vec::with_capacity(prices.len());
    out.push(prices[0]);
    for &p in &prices[1..] {
        let prev = *out.last().unwrap();
        out.push(alpha * p + (1.0 - alpha) * prev);
    }
    out
}

pub fn max_drawdown(equity: &[f64]) -> f64 {
    let mut peak = equity[0];
    let mut max_dd = 0.0;
    for &val in equity {
        if val > peak { peak = val; }
        let dd = (peak - val) / peak;
        if dd > max_dd { max_dd = dd; }
    }
    max_dd
}