original.name="Template_Valid_28"
======
>>> main.whiley

function id<T>(T item) -> (T r)
ensures r == item:
    return item

function f<T>(T z) -> (T r)
    ensures r == z:
    return id<T>(z)

public export method test():
    //
    assert f(0) == 0
    assert f(true) == true
    assert f([1,2,3]) == [1,2,3]
    
---