slots: the docs for writer used obsolete (>>slot) syntax
slots: the docs for writer used obsolete (>>slot) syntax

kingcons/factor,erg/factor,erg/factor,erg/factor,mcandre/factor,erg/factor,mcandre/factor,mcandre/factor,kingcons/factor,erg/factor,mcandre/factor,erg/factor,mcandre/factor,mcandre/factor,erg/factor,kingcons/factor,mcandre/factor,kingcons/factor