SomeStructure [
  a: path.to.NamedTuple (x, y, = g + h) else path.to.SomeOtherTuple (x, y) else path.to.AnotherTuple (x, y),
  b as x,
  c as y = 1...3 else 5...7,
  d: (i, (j, k), l = 1..2),
  e: path.to.SubStruct [
    q,
    r as _,
    s as z = n as s32
  ],
  f as _,
  g: path.to.Enum { X | Y | Z },
  h: path.to.Enum { X...Z },
]