block.(*arguments)  # bovi's example

new = { hash: :syntax }
call(with, hash: :syntax)
this_crazy(hash: :syntax)
test hash: :syntax
test \
  hash: :syntax,
  multi: :line

more hash::tests
more hash:new
more hash:"tests"
more hash:42
more hash:??
more hash:{}
more hash:nil
more hash:foo
more hash://
_ _:_

keywords for:keys
predefined_constants nil:keys
alias:void:goto