double-comma-01 = [1,,2]
double-comma-02 = [1,2,,]

only-comma-01 = [,]
only-comma-02 = [,,]

no-comma-01 = [true false]
no-comma-02 = [ 1 2 3 ]
no-comma-03 = [ 1 #,]

no-close-01 = [ 1, 2, 3
no-close-02 = [1,
no-close-03 = [42 #]
no-close-04 = [{ key = 42
no-close-05 = [{ key = 42}
no-close-06 = [{ key = 42 #}]
no-close-07 = [{ key = 42} #]
no-close-08 = [