CreateFunctionQuery bytes2hex (children 2)
 Identifier bytes2hex
 Function lambda (children 1)
  ExpressionList (children 2)
   Function tuple (children 1)
    ExpressionList (children 1)
     Identifier address
   Function concat (children 1)
    ExpressionList (children 2)
     Literal \'0x\'
     Function lower (children 1)
      ExpressionList (children 1)
       Function hex (children 1)
        ExpressionList (children 1)
         Identifier address
