arrow-optics / arrow.optics / PIso / first
open fun <C> first(): PIso<Tuple2<S, C>, Tuple2<T, C>, Tuple2<A, C>, Tuple2<B, C>>
open fun <C> first():
PIso
<Tuple2<S, C>, Tuple2<T, C>, Tuple2<A, C>, Tuple2<B, C>>
Create a pair of the PIso and a type C
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