Cli.osa.swap: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/cli.bend as Cli
Lines 2264-2270 of shake@0.7.0.0/src/cli.bend: https://jend.leeeet.dev/read.txt?path=shake@0.7.0.0/src/cli.bend&start_line=2264&end_line=2270

import Base

# whether the two chars before these, swapped, are these two
def osa.swap(pa: Maybe<&2, Char>, pb: Maybe<&2, Char>, +ca: Char, +cb: Char) -> Bool:
  match pa:
    case None{}:
      False{}
    case Some{xa}:
      osa.swap.b(xa, pb, ca, cb)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=shake@0.7.0.0/src/cli.bend&name=osa.swap.b