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Within LTS Haskell 22.21 (ghc-9.6.5)

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  1. getAttrValue :: ArrowXml a => String -> a XmlTree String

    hxt Text.XML.HXT.Arrow.XmlArrow

    select the value of an attribute of an element node, always succeeds with empty string as default value ""

  2. getAttrValue0 :: ArrowXml a => String -> a XmlTree String

    hxt Text.XML.HXT.Arrow.XmlArrow

    like getAttrValue, but fails if the attribute does not exist

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