core/org.jetbrains.kotlinx.dataframe.impl.aggregation.aggregators/Selector

Selector

internal typealias Selector<Value, Return> = Sequence<Value & Any>.(type: KType) -> Return

Type alias for a selector function where the type of the values is provided as KType.

It is expected that Value: Return& Any, and Return: Any?.

Nulls have already been filtered out when this function is called.