How to know the arguments in Python Script

Hi, guys
I am writing syntax by python script in dynamo, but I have a lot of trouble following attached image:
I can see support command after dot however I don’t know to any arguments between parentheses
Can you help me solve this problem, I appreciate your help
HKT1

If you are looking for a way to check if ‘something’ is present in a ‘list’ and want to do this in python I’d say:

input1 = IN[0]
num1 = 2
if num1 in input1:
 #do something

If you are looking for a way to see the inputs required by functions, try searching the forums for intellisense, as that is what I think you are talking about. Although, if I recall correctly, it is not available inside Dynamo but you can get it for visual studios.

Thanks you, it is very useful