Reverted contractSize, redid notional, initialMargin, initialMarginPercentage, maintenanceMargin, maintenanceMarginPercentage
Reverted contractSize, redid notional, initialMargin, initialMarginPercentage, maintenanceMargin, maintenanceMarginPercentage

```
deribit.fetchPosition (SOL/USD:SOL)
2022-05-21T06:34:06.676Z iteration 0 passed in 178 ms

{
  info: {
    total_profit_loss: '-0.001131489',
    size_currency: '0.603420186',
    size: '30.0',
    settlement_price: '52.09',
    realized_profit_loss: '0.000615087',
    realized_funding: '0.00000443',
    open_orders_margin: '0.0',
    mark_price: '49.72',
    maintenance_margin: '0.012070224',
    leverage: '25',
    kind: 'future',
    instrument_name: 'SOL-PERPETUAL',
    initial_margin: '0.024138628',
    index_price: '49.72',
    floating_profit_loss: '-0.001131489',
    estimated_liquidation_price: '21.98',
    direction: 'buy',
    delta: '0.603420186',
    average_price: '49.81'
  },
  symbol: 'SOL/USD:SOL',
  timestamp: 1653114846676,
  datetime: '2022-05-21T06:34:06.676Z',
  initialMargin: 0.024138628,
  initialMarginPercentage: 4.000301706844126,
  maintenanceMargin: 0.012070224,
  maintenanceMarginPercentage: 2.000301660441966,
  entryPrice: 49.81,
  notional: 0.603420186,
  leverage: 25,
  unrealizedPnl: -0.001131489,
  contracts: undefined,
  contractSize: 10,
  marginRatio: undefined,
  liquidationPrice: 21.98,
  markPrice: 49.72,
  collateral: undefined,
  marginMode: undefined,
  marginType: undefined,
  side: 'long',
  percentage: -4.687461938598996
}
```

ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt