question: get the user who received the request . concode_field_sep String REFUSE_ANSWER concode_elem_sep Key<User> receiver concode_elem_sep Key<User> sender concode_elem_sep Long id concode_elem_sep String ACCEPT_ANSWER concode_field_sep Long getId concode_elem_sep User getSender
target: User function ( ) { return ofy ( ) . load ( ) . key ( receiver ) . now ( ) ; }