# Identity tests ```py class A: ... def get_a() -> A: ... def get_object() -> object: ... a1 = get_a() a2 = get_a() n1 = None n2 = None o = get_object() reveal_type(a1 is a1) # revealed: bool reveal_type(a1 is a2) # revealed: bool reveal_type(n1 is n1) # revealed: Literal[True] reveal_type(n1 is n2) # revealed: Literal[True] reveal_type(a1 is n1) # revealed: Literal[False] reveal_type(n1 is a1) # revealed: Literal[False] reveal_type(a1 is o) # revealed: bool reveal_type(n1 is o) # revealed: bool reveal_type(a1 is not a1) # revealed: bool reveal_type(a1 is not a2) # revealed: bool reveal_type(n1 is not n1) # revealed: Literal[False] reveal_type(n1 is not n2) # revealed: Literal[False] reveal_type(a1 is not n1) # revealed: Literal[True] reveal_type(n1 is not a1) # revealed: Literal[True] reveal_type(a1 is not o) # revealed: bool reveal_type(n1 is not o) # revealed: bool ```