a = Foo(a, [b, z], "hello, world", c, )

Foo(a, b)

Foo(
    a,
    [b, c],
    d
)

Foo(
    a
    [b, "c"]
    d
)

Foo(
    a,
    [b, c],
    d
)

Foo(
    a,
    [
        b,
        c
    ],
    d
)