Missing functions

• fn:abs($arg as xsext:numeric?)
• fn:adjust-date-to-timezone($arg as xs:date?)
• fn:adjust-date-to-timezone($arg as xs:date?, $timezone as xs:dayTimeDuration?)
• fn:adjust-dateTime-to-timezone($arg as xs:dateTime?)
• fn:adjust-dateTime-to-timezone($arg as xs:dateTime?, $timezone as xs:dayTimeDuration?)
• fn:adjust-time-to-timezone($arg as xs:time?)
• fn:adjust-time-to-timezone($arg as xs:time?, $timezone as xs:dayTimeDuration?)
• fn:avg($arg as xs:anyAtomicType*)
• fn:base-uri()
• fn:base-uri($arg as node()?)
• fn:ceiling($arg as xsext:numeric?)
• fn:codepoints-to-string($arg as xs:integer*)
• fn:collection()
• fn:collection($arg as xs:string?)
• fn:contains($arg1 as xs:string?, $arg2 as xs:string?, $collation as xs:string)
• fn:count($arg as item()*)
• fn:current-date()
• fn:current-dateTime()
• fn:current-time()
• fn:dateTime($arg1 as xs:date?, $arg2 as xs:time?)
• fn:day-from-date($arg as xs:date?)
• fn:day-from-dateTime($arg as xs:dateTime?)
• fn:days-from-duration($arg as xs:duration?)
• fn:deep-equal($parameter1 as item()*, $parameter2 as item()*)
• fn:deep-equal($parameter1 as item()*, $parameter2 as item()*, $collation as xs:string)
• fn:default-collation()
• fn:distinct-values($arg as xs:anyAtomicType*)
• fn:distinct-values($arg as xs:anyAtomicType*, $collation as xs:string)
• fn:doc-available($uri as xs:string?)
• fn:document-uri($arg as node()?)
• fn:encode-for-uri($uri-part as xs:string?)
• fn:error()
• fn:error($error as xs:QName)
• fn:error($error as xs:QName?, $description as xs:string)
• fn:error($error as xs:QName?, $description as xs:string, $error-object as item()*)
• fn:escape-html-uri($uri as xs:string?)
• fn:exactly-one($arg as item()*)
• fn:floor($arg as xsext:numeric?)
• fn:hours-from-dateTime($arg as xs:dateTime?)
• fn:hours-from-duration($arg as xs:duration?)
• fn:hours-from-time($arg as xs:time?)
• fn:id($arg as xs:string*)
• fn:id($arg as xs:string*, $node as node())
• fn:idref($arg as xs:string*)
• fn:idref($arg as xs:string*, $node as node())
• fn:implicit-timezone()
• fn:in-scope-prefixes($element as element())
• fn:index-of($seqParam as xs:anyAtomicType*, $srcParam as xs:anyAtomicType)
• fn:index-of($seqParam as xs:anyAtomicType*, $srcParam as xs:anyAtomicType, $collation as xs:string)
• fn:insert-before($target as item()*, $position as xs:integer, $inserts as item()*)
• fn:iri-to-uri($iri as xs:string?)
• fn:lang($testlang as xs:string?)
• fn:lang($testlang as xs:string?, $node as node())
• fn:last()
• fn:local-name()
• fn:local-name($arg as node()?)
• fn:local-name-from-QName($arg as xs:QName?)
• fn:matches($input as xs:string?, $pattern as xs:string)
• fn:matches($input as xs:string?, $pattern as xs:string, $flags as xs:string)
• fn:max($arg as xs:anyAtomicType*)
• fn:max($arg as xs:anyAtomicType*, $collation as xs:string)
• fn:min($arg as xs:anyAtomicType*)
• fn:min($arg as xs:anyAtomicType*, $collation as xs:string)
• fn:minutes-from-dateTime($arg as xs:dateTime?)
• fn:minutes-from-duration($arg as xs:duration?)
• fn:minutes-from-time($arg as xs:time?)
• fn:month-from-date($arg as xs:date?)
• fn:month-from-dateTime($arg as xs:dateTime?)
• fn:months-from-duration($arg as xs:duration?)
• fn:name()
• fn:name($arg as node()?)
• fn:namespace-uri()
• fn:namespace-uri($arg as node()?)
• fn:namespace-uri-for-prefix($prefix as xs:string?, $element as element())
• fn:namespace-uri-from-QName($arg as xs:QName?)
• fn:nilled($arg as node()?)
• fn:node-name($arg as node()?)
• fn:normalize-space()
• fn:normalize-space($arg as xs:string?)
• fn:normalize-unicode($arg as xs:string?)
• fn:normalize-unicode($arg as xs:string?, $normalizationForm as xs:string)
• fn:number()
• fn:number($arg as xs:anyAtomicType?)
• fn:one-or-more($arg as item()*)
• fn:position()
• fn:prefix-from-QName($arg as xs:QName?)
• fn:QName($paramURI as xs:string?, $paramQName as xs:string)
• fn:remove($target as item()*, $position as xs:integer)
• fn:replace($input as xs:string?, $pattern as xs:string, $replacement as xs:string)
• fn:replace($input as xs:string?, $pattern as xs:string, $replacement as xs:string, $flags as xs:string)
• fn:resolve-QName($qname as xs:string?, $element as element())
• fn:resolve-uri($relative as xs:string?)
• fn:resolve-uri($relative as xs:string?, $base as xs:string)
• fn:root()
• fn:root($arg as node()?)
• fn:round($arg as xsext:numeric?)
• fn:round-half-to-even($arg as xsext:numeric?)
• fn:round-half-to-even($arg as xsext:numeric?, $precision as xs:integer)
• fn:seconds-from-dateTime($arg as xs:dateTime?)
• fn:seconds-from-duration($arg as xs:duration?)
• fn:seconds-from-time($arg as xs:time?)
• fn:static-base-uri()
• fn:string()
• fn:string($arg as item()?)
• fn:string-length()
• fn:string-to-codepoints($arg as xs:string?)
• fn:subsequence($sourceSeq as item()*, $startingLoc as xs:double)
• fn:subsequence($sourceSeq as item()*, $startingLoc as xs:double, $length as xs:double)
• fn:sum($arg as xs:anyAtomicType*)
• fn:sum($arg as xs:anyAtomicType*, $zero as xs:anyAtomicType?)
• fn:timezone-from-date($arg as xs:date?)
• fn:timezone-from-dateTime($arg as xs:dateTime?)
• fn:timezone-from-time($arg as xs:time?)
• fn:tokenize($input as xs:string?, $pattern as xs:string)
• fn:tokenize($input as xs:string?, $pattern as xs:string, $flags as xs:string)
• fn:trace($value as item()*, $label as xs:string)
• fn:translate($arg as xs:string?, $mapString as xs:string, $transString as xs:string)
• fn:unordered($sourceSeq as item()*)
• fn:year-from-date($arg as xs:date?)
• fn:year-from-dateTime($arg as xs:dateTime?)
• fn:years-from-duration($arg as xs:duration?)
• fn:zero-or-one($arg as item()*)