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r.pipe(J(Y)).subscribe({next({hidden:n}){n?Kn(e,"hidden"):Xt(e)},complete(){Xt(e)}}),$i(e,t).pipe(j(r),D(()=>r.complete()),f(n=>({ref:e,...n})))}function Vi(e,{viewport$:t,header$:r}){let n=new Map;for(let a of e){let c=decodeURIComponent(a.hash.substring(1)),u=ee(`[id="${c}"]`);typeof u!="undefined"&&n.set(a,u)}let o=r.pipe(f(a=>24+a.height));return Ue(document.body).pipe(U("height"),f(()=>{let a=[];return[...n].reduce((c,[u,s])=>{for(;a.length&&n.get(a[a.length-1]).tagName>=s.tagName;)a.pop();let l=s.offsetTop;for(;!l&&s.parentElement;)s=s.parentElement,l=s.offsetTop;return c.set([...a=[...a,u]].reverse(),l)},new Map)}),O(a=>B([o,t]).pipe(zr(([c,u],[s,{offset:{y:l}}])=>{for(;u.length;){let[,p]=u[0];if(p-s<l)c=[...c,u.shift()];else break}for(;c.length;){let[,p]=c[c.length-1];if(p-s>=l)u=[c.pop(),...u];else 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/*!
 * clipboard.js v2.0.6
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