kenizer):t[i.level]=[i.tokenizer],i.start&&(i.level==="block"?t.startBlock?t.startBlock.push(i.start):t.startBlock=[i.start]:i.level==="inline"&&(t.startInline?t.startInline.push(i.start):t.startInline=[i.start]))}"childTokens"in i&&i.childTokens&&(t.childTokens[i.name]=i.childTokens)}),r.extensions=t),n.renderer){let i=this.defaults.renderer||new y(this.defaults);for(let s in n.renderer){if(!(s in i))throw new Error(`renderer '${s}' does not exist`);if(["options","parser"].includes(s))continue;let...