[Closed] access parameters in CA

I want to assign paramater in my own CA
here’s my CA define

testcaDef = attributes "testCa"
 (
 	fn dispatch =
 	(
 		for i = 1 to objAry.count do
 		(
 			if matchpattern objAry[i].name pattern:"*01" do obj1 = objAry[i]
 			if matchpattern objAry[i].name pattern:"*02" do obj2 = objAry[i]
 		)			
 	)
 	parameters testP 
 	(
 		objAry type:#nodeTab tabSize:0 tabSizeVariable:true
 		obj1 type:#node
 		obj2 type:#node
 		
 		on objAry set obj do dispatch()
 	)	
 )

now i know i can use

$.testCa.objAry[1] = XXX

to let it auto asignment obj1 and obj2.

but i don’t know…How to acess objAry in dispatch function.
I think it maybe like…

testP.objAry.count

but seems not …