This member is added by an implicit conversion from QuerySortExpr[P] to
any2stringadd[QuerySortExpr[P]] performed by method any2stringadd in scala.Predef.
This member is added by an implicit conversion from QuerySortExpr[P] to
StringFormat[QuerySortExpr[P]] performed by method StringFormat in scala.Predef.
a query sort expression
the property to sort on
the direction of the sort