Creating custom actions for groups in Rasa (chatbot)

Hi!

I need help to write a code for custom actions for groups in Rasa?

Example of statement: What analysis do I use /how do I measure if independent variables are numerical and categorical but dependent variables are numerical

my nlu:
What analysis do I use if [indep]{“entity”:‘depOrIndep_var’, “group”:“firstgroup_var”} variables are [num]{“entity”: “numOrCat_var1”, “group”: “firstgroup_var”} and [cat]{“entity”: “numOrCat_var2”, “group”: “firstgroup_var”} but [dependent]{“entity”: “depOrIndep_var”, “group”: “secondgroup_var”} variables are [numerical]{“entity”: “numOrCat_var3”, “group”: “secondgroup_var”}

the answer:
"use X"