HistoricalDataBar

Field	Type	Description
`date`	`string`	The start date of the bar’s covered data.
`open`	`double`	The bar’s open price.
`high`	`double`	The bar’s high price.
`low`	`double`	The bar’s low price.
`close`	`double`	The bar’s close price.
`volume`	`string`	The bar’s traded volume if available (only available for TRADES)
`WAP`	`string`	The bar’s Weighted Average Price (only available for TRADES)
`barCount`	`int32`	The number of trades that took place through the course of trading.