imapLensO<K, V> function

OptionLens<IMap<K, V>, V> imapLensO<K, V>(
  1. K k
)

Implementation

OptionLens<IMap<K, V>, V> imapLensO<K, V>(K k) => lensO((m) => m[k], (m, v) => m.set(k, v));