ScannerDataElement

Field	Type	Description
`rank`	`int32`	Position of the sorted scanner results.
`contract`	`Contract`	Contract object containing defining characteristics for ticker.
`marketName`	`string`	Instrument’s local name.
`distance`	`string`	Internal use only.
`benchmark`	`string`	Always returns an empty string.
`projection`	`string`	Internal use only.
`comboKey`	`string`	Describes the combo legs when the scanner is returning EFP.