Names.Group.of: def of bend-lint-api@0.2.0.0
Import: import bend-lint-api@0.2.0.0/shared/names.bend as Names
Lines 64-74 of bend-lint-api@0.2.0.0/shared/names.bend: https://jend.leeeet.dev/read.txt?path=bend-lint-api@0.2.0.0/shared/names.bend&start_line=64&end_line=74

import Base

def Group.of(
  ~A: Data,
  ~key: A -> String,
  xs: List<&2, A>,
  groups: Map<&2, List<&2, A>>
) -> Map<&2, List<&2, A>>:
  match xs:
    case Nil{}:
      groups
    case Con{+x, rest}:
      Group.of(~A, ~key, rest, Group.add(A, groups, key(x), x))

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=Map
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bend-lint-api@0.2.0.0/shared/names.bend&name=Group.add