JSON template for input/output parameters

[hchatillon]

Hello,
I am using conductor for advanced calculation. I'd like more documentation on how to use the JSON templates for input parameters, and see if I can prepare some calculation :
Basic usage : "data": "${myInlineTask.output.result}"
I saw this is possible for string or array (in DO_WHILE for example) : "data": "${myInlineTask.output.result.length()}"
Then is is possible ? "data": "${myInlineTask.output.result / 1000}" This syntax does not work, but I wonder what is the possibilities in this template. Any documentation somewhere ?

thanks !