var params_a := GeomOpsParams3D.new()
params_a.shape     = ...
params_a.transform = ...

var params_b := GeomOpsParams3D.new()
params_b.shape     = ...
params_b.transform = ...

var result := GeomOpsResult3D.new()

if GeomOps3D.closest_to_shape(params_a, params_b, result):
    print(result.point_a)
    print(result.point_b)

if GeomOps3D.closest_to_point(params_a, point, result):
    ...

var collision_shape_a: CollisionShape3D = ...
var collision_shape_b: CollisionShape3D = ...

var result := GeomOpsResult3D.new()

if GeomOps3D.node_closest_to_shape(collision_shape_a, collision_shape_b, result):
    print(result.point_a)
    print(result.point_b)

if GeomOps3D.node_closest_to_point(collision_shape_a, point, result):
    ...