Example with mandatory variables not filled in

---                                                                             
var1: test                    # The first variable                              
var3: test1                   # The third variable                              
var6:                         # The sixth variable                              
  - test1                                                                       
  - test2                                                                       

Example with all variables modifiable

---                                                                             
var1: test                    # The first variable                              
var2: test                    # The second variable                             
var3: test1                   # The third variable                              
var4:                         # The forth variable                              
var5: false                   # The fifth variable                              
var6:                         # The sixth variable                              
  - test1                                                                       
  - test2