Sigv4.grp.add: def of bend-kit-sigv4@0.11.0.1
Import: import bend-kit-sigv4@0.11.0.1/sigv4.bend as Sigv4
Lines 217-222 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=217&end_line=222

import Base

def grp.add(acc: List<&2, Sigma<&2, &2, String, _ => String>>, +n: String, +v: String) -> List<&2, Sigma<&2, &2, String, _ => String>>:
  match acc:
    case Nil{}:
      [(n, v)]
    case Con{(+pn, +pv), rest}:
      grp.if(String.eq(pn, n), n, v, pn, pv, rest)

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=bend-kit-sigv4@0.11.0.1/sigv4.bend&name=grp.if