How can i know the parameter´s format in an accion hub?

[Jhonny_González]

Hi, everyone!
Im having some questions about looker actions, cause for example if i want to do an acion between Looker and Amazon Web Services how could i know what kind of parameter´s format i should to use for aws_resource_id?

ive been thought about "String" but im not sure about that cause i don't know what kind of format Amazon will give me like "i-1234567890abcdefg" or "my-bucket-name", and sorry if i post in the wrong place 

Thank you !