Method and resource list for a step

Hello,

for coverage and documentation purpose I'm trying to list the resource/Method used for a teststep

I'm using groovy script

I have tried

stepPropList = teststep.getPropertyList()                         but theses properties are not listed

def property1 = '${'+ teststepname +'#Method}';            property is always empty for each step
def test1 = context.expand(property1)

what is the right way to list all the REST Teststep properties with Groovy ? (method, resource,Description...)

Thank you