OptionalinputNumber of input units (e.g. tokens)
OptionalinputUSD input cost
OptionaloutputNumber of output units (e.g. tokens)
OptionaloutputUSD output cost
OptionaltotalDefaults to input+output if not set
OptionaltotalUSD total cost, defaults to input+output
Optionalunit
(Deprecated. Use usageDetails and costDetails instead.) Standard interface for usage and cost