unitario

/**
 * Maps a reference type to its runtime value type.
 */
type ValueTypeOf<T> = T extends
	| StringConstructor
	| NumberConstructor
	| BooleanConstructor
	| SymbolConstructor
	| BigIntConstructor
	? ReturnType<T>

unitario

<?xml version="1.0" encoding="UTF-8"?>
<ONIXMessage 
 xmlns="http://ns.editeur.org/onix/3.0/reference"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:onix="http://ns.editeur.org/onix/3.0/reference" release="3.0">
 <Header>
   <Sender>
     <SenderIdentifier>
       <SenderIDType>23</SenderIDType>
       <IDValue>SE556921913101</IDValue>