Note that it's only misleading due to the ambiguous grammar: The sentence can be read as "You’re saying that any object given this contract must be an object c

Note that it's only misleading due to the ambiguous grammar: The sentence can be read as "You’re saying that any object given this contract must be an object containing 2 properties (the object may contain no more, no less)" or "You’re saying that any object given this contract must be an object containing 2 properties (you are saying no more, no less)".