public <T> AnyEmbeddedBuilder<Q> anyEmbedded(Path<? extends Collection<T>> collection, Path<T> target) {
        return new AnyEmbeddedBuilder<Q>(queryMixin, collection);
    }
Define a constraint for an embedded object

@param collection collection
@param target target
@return builder
querydsl-mongodb/src/main/java/com/querydsl/mongodb/document/AbstractMongodbQuery.java