error: missing import `sender_receiver_imports_4`
  ╭▸ test/ui/sender_receiver_imports.aldrin:8:23
  │
8 │     f4 @ 4 = receiver<sender_receiver_imports_4::S>;
  │                       ━━━━━━━━━━━━━━━━━━━━━━━━━ schema `sender_receiver_imports_4` used here
  │
  ╰ help: did you mean `sender_receiver_imports_2`?