Using context variables inside prompts.

[Julian-BFacal]

I have seen in the Prompt Customization documentation that there is the possibility to reference context variables inside prompts. However, I have tried to call several variables, ones that i made up like $name or ones that are integrated from Nemo like $last_user_message but I haven't found any success. Ive tried {{ $name }}, but it just gives an empty response. I don't know what I'm doing wrong or if I simply misinterpreted the documentation.

I also wanted to know if there is any way i can access the last user intent so I can use it as a variable when calling actions from colang to validate that the flow is working as intended. For example, if i expect a name to be given that the user intent is not a negative response.