Notch.with: def of bend-kit-notch@0.4.0.0
Import: import bend-kit-notch@0.4.0.0/notch.bend as Notch
Lines 62-66 of bend-kit-notch@0.4.0.0/notch.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-notch@0.4.0.0/notch.bend&start_line=62&end_line=66

import Base

# A logger that adds fs to every line, after the fields it already adds.
def with(lg: Logger, fs: List<&2, Field>) -> Logger:
  match lg:
    case Logger{m, f, c}:
      Logger{m, f, List.append(&2, Field, c, fs)}

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=bend-kit-notch@0.4.0.0/notch.bend&name=Field
  https://jend.leeeet.dev/definition.txt?path=bend-kit-notch@0.4.0.0/notch.bend&name=Logger