()

[]

{}

[1,2,3]

(4,5,6)

{7: 8, 9: 10, 11: 12}

{13, 14, 15}

a = {x:y}

b = {z:w, **a}

c = [k,l,*m]

(o,)

(p,q,r,)

s,

t, u,

(#comment
  v, w
#comment
)

(#comment
  x, y,
#comment
)

((z,))