Using |keys filter

Here is an example of using the |keys filter to get a list of property names from a dictionary.

• automation
• output

• start:
    set:
      person:
        name_first: Kina
        name_last: Halpue
        email: kina.halpue@cerb.example
    return:
      keys@csv: {{person|keys|join(', ')}}

• __return:
    keys:
    - name_first
    - name_last
    - email