Return margin impact info

{
  "type": "object",
  "properties": {
    "Aux Price": {
      "type": "number",
      "description": "Required price to support Stop and Stop Limit orders"
    },
    "ContractId": {
      "type": "number",
      "description": "The internal IB identifier for the trading product specified as an integer (can be obtained in response to /secdef request)"
    },
    "Currency": {
      "type": "string",
      "description": "The currency in which the FX pair trades (only for InstrumentType=CASH)"
    },
    "CustomerOrderId": {
      "type": "string",
      "description": "The order ID assigned by the customer."
    },
    "InstrumentType": {
      "type": "string",
      "description": "The instrument type of the contract"
    },
    "ListingExchange": {
      "type": "string",
      "description": "The exchange on which the trading product is listed (only for InstrumentType=STK)"
    },
    "Order Type": {
      "type": "number",
      "description": "Market = '1'\nLimit = '2'\nStop = '3'\nStopLimit = '4'\n",
      "enum": [
        1,
        2,
        3,
        4
      ]
    },
    "Price": {
      "type": "number",
      "description": "The order price"
    },
    "Quantity": {
      "type": "number",
      "description": "The number of units in the order; contracts or shares"
    },
    "Side": {
      "type": "number",
      "description": "Buy = '1', Sell = '2'",
      "enum": [
        1,
        2
      ]
    },
    "Ticker": {
      "type": "string",
      "description": "The symbol that identifies the trading product"
    },
    "Time in Force": {
      "type": "number",
      "description": "Defines order's active lifetime.\nDay = '0'\nGTC (Good till Cancel) = '1'\nIOC (Immediate or Cancel) = '3'\nOpen = '2'\nClose = '7'\n",
      "enum": [
        0,
        1,
        2,
        3,
        7
      ]
    }
  }
}