let data = doItYourselfToLoadXMLStringFrom(fileName: "test4", ext: "svg")
let document = try! Document(data: data)
document.rootElement.name
document.rootElement.children()
document.rootElement.elements(XPath: "//svg").first?.attributes["width"]
document.rootElement.elements(XPath: "//circle").first?.attributes["stroke"]

let data = Utils.load(fileName: "test3", ext: "html")
let document = try? Document(data: data, kind: .html)
let body = document.rootElement.child(index: 1)
body?.elements(XPath: "//p").first?.content

let element = document.rootElement.child(index: 0)
element.name
element.ns
element.line
element.attributes
element.parent
element.nextSibling
element.previousSibling

element.children { child, index in
  return child.name == "a"
}
element.children(name: "item")
element.children(indexes: [0, 2, 4])

let body = document.rootElement.firstChild(name: "body")
body?.elements(XPath: "//a").first?.attributes["href"]
body?.elements(XPath: "//div") { element in
  return element.attributes["width"] == "100"
}