new_contents: #IsNCName', 'IsName', 'IsNmtoken', 'IsQName', 'IsXml', 'IsXmlSpace', 'SplitQName', 'XmlStrLStrip', 'XmlStrRStrip', 'XmlStrStrip'
  from amara._xmlstring import *
  from string import *
  
subject: Add in string helper amara.lib.string