CalculateImpliedVolatilityRequest

Field	Type	Description
`reqId`	`int32`	Unique request identifier used for tracking across EWrapper
`contract`	`Contract`	Contract object containing defining characteristics for ticker.
`optionPrice`	`double`	Hypothetical option price
`underPrice`	`double`	Current price of the underlying contract.
`impliedVolatilityOptions`	`ImpliedVolatilityOptionsEntry`	Internal use only. Send an empty tag value list

CalculateImpliedVolatilityRequest.ImpliedVolatilityOptionsEntry

Field	Type	Description
`key`	`string`
`value`	`string`