How to pass a node|entity|domain object to custom cypher?

Drivers & Stacks Spring Data Neo4j & Neo4j-OGM
1

Snippet below doesn't work (always 0), how should I do it then?

@Query("""
    MATCH (i:Image) -[:DEPICTS] -> (p:Person)
    WHERE p = $person
    RETURN count(i)
    """)
public Integer countByPeopleContains(Person person);

In Person class there is a @Id @GeneratedValue private String id;. I have failed all attempts of checking equality with id too.

In SDN docs it says:

Mapped entities (everything with a @Node ) passed as parameter to a function that is annotated with a custom query will be turned into a nested map.

And an example:

@Query("MATCH (m:Movie {title: $movie.__id__})\n"
           + "MATCH (m) <- [r:DIRECTED|REVIEWED|ACTED_IN] - (p:Person)\n"
           + "return m, collect(r), collect(p)")
    Movie findByMovie(@Param("movie") Movie movie);

I don't understand why would anyone use movie title as it's natural id. What is the correct way?

Additional failed attempts can be found in this SO question.

2

If person is turned into a map, then try the following predicate instead:

where p.id = $person.id
3

It results in 0 being returned, which is wrong. Below are some of another failed attempts. And this is a minimal reproducible example.

// @Query("""
	// MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	// WHERE id(p) = id($person)
	// RETURN count(i)
	// """)
// Invalid input for function 'id()': to be a node or relationship, but it was `Map`;
/* @Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	WHERE p = $person
	RETURN count(i)
	""") */
/* @Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	WHERE p.id = $person.__id__
	RETURN count(i)
	""")  */
/* @Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	WHERE p.id = $person.id
	RETURN count(i)
	""") */ 
/* @Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	WHERE id(p) = $person.id
	RETURN count(i)
	""") */
/* @Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person)
	WHERE id(p) = $person.__id__
	RETURN count(i)
	""") */
@Query("""
	MATCH (i:Image) -[:DEPICTS] -> (p:Person {id: $person.__id__})
	RETURN count(i)
	""")
public Integer countByPeopleContains(Person person);