Sigv4.squash.if: def of bend-kit-sigv4@0.11.0.1
Import: import bend-kit-sigv4@0.11.0.1/sigv4.bend as Sigv4
Lines 182-189 of bend-kit-sigv4@0.11.0.1/sigv4.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-sigv4@0.11.0.1/sigv4.bend&start_line=182&end_line=189

import Base

# Canonical headers: lowercase names, trimmed values with space runs squashed, sorted by name,
# and a repeated name's values joined by ',' in the order given.
def squash.if(space: Bool, sp: Bool, +c: U32, rest: String) -> String:
  match space sp:
    case True{} True{}:
      rest
    case _ _:
      SCon{Chr{c}, rest}

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=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32