def fun (a : String) and (b : Integer) proc (p : Process):
    let c = [ a, "x" ] : [ String ]
    let d = [ a ]
    let e = [ b : Integer, 43 : Integer ]:[Integer]
    let f = [[ c, ["y"]]] : [[[ String ] ] ]
    guard (c /= d)
    guard (e == e)

test Test:
    let x = "" : String
    let y = (2 : Integer)
    let z = (2 : Integer) + (y : Integer) : Integer
    let re = /xyz/ : Regex
    spawn as p
    fun "a" and ((z) : Integer) proc (p : Process)