original.name="TypeEquals_Valid_17"
======
>>> main.whiley


type rlist is bool | int[]

function f(rlist l) -> int:
    if l is bool:
        return 0
    else:
        return |l|

public export method test() :
    assume f(true) == 0
    assume f(false) == 0
    assume f([1, 2, 3]) == 3

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