[NTG-context] conTeXt Mkiv: the number of parameters can not be more than 9?

hi, all For testing, I have a definition: \define[9]\DEFINETEST{#1,#2,#3,#4,#5,#6,#7,#8,#9} context test can work fine, when I modify the above into: \define[10]\DEFINETEST{#1,#2,#3,#4,#5,#6,#7,#8,#9,#10} I got a error: test.tex: ! Illegal parameter number in definition of \DEFINETEST

From StackExchange, I got a answer:

Since ConTeXt is based on TeX, the maximum number of 9 parameters is inherited So, in Context mkiv, what should I do for more than 9 parameters? Thanks! Best Regards Dillon