== Example with mandatory variables not filled in

[,yaml]
----
---
variable: example             # A variable
family:                       # A family
  variable1: example          # A first variable
  subfamily:                  # A sub family
    variable: example         # A variable
  variable2: example          # A second variable
----
== Example with all variables modifiable

[,yaml]
----
---
variable: example             # A variable
family:                       # A family
  variable1: example          # A first variable
  subfamily:                  # A sub family
    variable: example         # A variable
  variable2: example          # A second variable
----