Sigv4.grp.if: def of bend-kit-sigv4@0.11.0.1
Import: import bend-kit-sigv4@0.11.0.1/sigv4.bend as Sigv4
Lines 210-215 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=210&end_line=215

import Base

def grp.if(same: Bool, +n: String, +v: String, +pn: String, +pv: String, rest: List<&2, Sigma<&2, &2, String, _ => String>>) -> List<&2, Sigma<&2, &2, String, _ => String>>:
  match same:
    case True{}:
      Con{(pn, pv ++ "," ++ v), rest}
    case False{}:
      Con{(n, v), Con{(pn, pv), rest}}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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.append