Arrow
1.1.5
arrow-optics
/
arrow.optics
/
PLens
/
Companion
/
tripleFirst
triple
First
@
JvmStatic
fun
<
A
,
B
,
C
>
tripleFirst
(
)
:
Lens
<
Triple
<
A
,
B
,
C
>
,
A
>
(
source
)
Lens
to focus into the first value of a
Triple