pub async fn fetch_top(
    context: &MangoGroupContext,
    fallback_config: &FallbackOracleConfig,
    account_fetcher: &impl AccountFetcher,
    perp_market_index: PerpMarketIndex,
    direction: Direction,
    count: usize
) -> Result<Vec<(Pubkey, MangoAccountValue, I80F48)>>
Expand description

Returns up to count accounts with highest abs pnl (by direction) in descending order. Note: keep in sync with perp.ts:getSettlePnlCandidates