Check.both: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/check.bend as Check
Lines 26-28 of shake@0.7.0.0/src/check.bend: https://jend.leeeet.dev/read.txt?path=shake@0.7.0.0/src/check.bend&start_line=26&end_line=28

import Base

# two lists of reports, one after the other
def both(xs: List<&2, SpecErr>, ys: List<&2, SpecErr>) -> List<&2, SpecErr>:
  List.append(&2, SpecErr, xs, ys)

Uses (3):
  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=shake@0.7.0.0/src/check.bend&name=SpecErr