{
"root": "string",
"contract": "string",
"expiration": "string",
"expiration_date": "string",
"interval": "string",
"currency": "string",
"exchange": "string",
"timezone": "UTC",
"price_type": "string",
"data": [
{
"date": "string",
"open": 0,
"high": 0,
"low": 0,
"close": 0,
"settle": 0,
"volume": 0,
"open_interest": 0
}
]
}