gib_x.output_class_name
(gib_x isa G[Object, Object]).output
(gib_x isa G[A[Object], G[nullable A[Object], nullable Object]]).output
gib_x.output_class_name
(gib_x isa G[Object, Object]).output
(gib_x isa G[A[Object], G[nullable A[Object], nullable Object]]).output