Tests are very inadequate.

Test.assertEquals(expecto(obj1).toBe(obj1),true);
Test.assertEquals(expecto(obj1).toBe(obj2),false);

There's nothing in the description about what toBe should return and about using expecto/toBe outside of ito.

There's a syntax error in the Submit tests.

[eval]:13
 it('is a function that returns true by default
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Invalid or unexpected token

Also, in the description examples, you use expect instead of expecto.