export interface TitleOpts { /**
     * Element name for main title. Default: `h1`
     */ element : string ; /**
     * Attribs for main title: Default: none
     */ attribs : any ; /**
     * Element name for subtitle: Default: `small`
     */ subElement : string ; /**
     * Attribs for subtitle: Default: none
     */ subAttribs : any ; } example param opts export const title = ( _opts ? ) => { const opts = { element : "h1" , attribs : { } , subElement : "small" , subAttribs : { } , ... _opts , } ; return ( _ , title , subtitle ) => [ opts . element , opts . attribs , title , subtitle ? [ opts . subElement , opts . subAttribs , subtitle ] : undefined , ] ; } ;