I understand, I just wonder if he/she really means to it. Who knows, some people have very good memory. When I work with a new (for me) topic, I am trying to ge

I understand, I just wonder if he/she really means to it. Who knows, some people have very good memory. When I work with a new (for me) topic, I am trying to get basic understanding of topic, still it far from remembering exact method signatures.