Cli.env.flag.is: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/cli.bend as Cli
Lines 1640-1652 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=1640&end_line=1652

import Base

# whether this kind is a flag
def env.flag.is(kk: ArgKind) -> Bool:
  match kk:
    case Flag{}:
      True{}
    case Opt{}:
      False{}
    case Many{}:
      False{}
    case Pos{}:
      False{}
    case Rest{}:
      False{}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=shake@0.7.0.0/src/cli.bend&name=ArgKind